3 3 20
4 4
2 4
2 2
2 2
2 2
5 5
2 2
2 2
2 2
5 5
5 5
3 5
4 2
2 2
5 5
5 5
3 5
5 5
2 2
3 3
 1 10 10
1 19
2 12
2 8
2 16
2 2
2 4
1 9
2 18
2 14
2 10
 10 10 10
2 6
17 7
5 19
14 14
10 10
16 2
6 10
7 17
18 2
17 1
 10 10 10
12 10
8 4
10 8
15 13
11 11
8 6
9 19
13 19
6 4
19 19
 3 3 20
5 5
6 6
6 6
6 2
6 4
6 6
6 6
5 3
5 5
6 4
6 2
5 1
5 1
6 6
6 6
6 2
5 5
6 4
5 3
6 4
 3 3 20
1 1
4 4
1 1
4 4
3 3
1 1
3 1
6 6
1 1
4 6
3 1
3 3
6 4
3 1
6 6
4 6
3 1
4 6
4 6
5 1
 1 10 10
2 10
1 9
2 12
2 18
2 4
2 8
2 20
2 2
2 6
2 14
 10 10 10
2 10
4 6
1 19
7 15
20 18
3 19
11 17
9 17
16 2
19 15
 3 1 20
3 1
1 1
3 1
4 2
4 2
6 2
1 1
5 1
5 1
2 2
4 2
2 2
6 2
4 2
4 2
2 2
1 1
6 2
2 2
6 2
 10 10 10
10 12
19 7
14 12
10 10
8 6
19 19
18 2
12 2
16 4
16 2
 1 1 100
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
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2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 1
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1 1
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1 1
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1 1
1 1
2 2
2 2
2 2
2 2
2 2
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2 2
2 2
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2 2
2 2
1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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1 1
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 1 10 10
1 15
1 19
2 16
1 17
2 4
2 2
2 8
1 11
2 10
2 6
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10 2
19 9
19 17
8 8
5 3
20 4
12 12
2 16
5 19
2 4
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2 4
2 4
1 3
4 2
3 3
2 4
3 3
1 3
1 3
3 3
4 4
3 1
1 3
3 3
2 2
2 4
4 2
4 2
1 1
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 1 10 10
1 19
1 17
2 2
2 10
1 15
2 8
2 6
2 16
2 14
2 4
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8 4
2 4
9 19
16 2
13 7
11 7
7 17
6 6
1 1
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 2 1 2
2 2
1 1
 1 3 100
2 2
1 1
1 5
1 1
2 4
1 1
1 1
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1 1
2 2
2 2
1 1
1 5
2 6
1 1
1 1
2 4
1 3
2 6
1 5
2 6
2 2
2 6
1 1
2 4
1 5
1 1
2 6
1 5
2 4
1 3
2 6
1 5
2 6
2 4
2 2
1 3
2 6
2 4
1 3
1 1
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1 3
1 1
2 6
1 5
1 5
2 4
2 4
1 3
1 5
2 4
2 6
1 3
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1 3
2 6
2 2
2 2
1 1
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2 6
1 5
1 3
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2 4
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2 6
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1 3
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1 5
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1 3
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 2 2 2
1 3
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 10 10 10
17 11
11 15
8 8
2 4
7 7
9 13
12 8
18 2
15 13
13 17
 1 10 10
2 16
1 1
1 19
2 10
2 4
2 18
2 12
2 6
2 14
2 2
 1 2 100
1 3
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2 4
1 3
2 4
1 1
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1 1
2 4
2 2
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1 3
2 4
1 3
2 4
2 2
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2 4
1 3
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2 4
1 1
2 4
1 3
1 1
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2 2
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1 1
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2 4
1 1
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1 1
2 4
2 4
1 1
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2 4
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1 1
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1 3
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1 1
2 2
1 1
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1 1
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2 4
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1 3
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1 1
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1 1
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1 1
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1 3
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2 4
1 3
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1 3
1 1
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2 2
 3 3 20
1 1
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5 1
3 5
1 3
4 4
1 1
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4 6
1 3
3 5
6 6
1 1
6 6
1 1
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4 6
 10 10 10
7 19
14 8
15 13
6 6
10 8
18 6
3 1
16 4
8 10
12 12
 10 10 10
4 4
18 20
11 9
1 15
2 2
14 6
2 12
17 9
11 13
8 2
 3 2 10
4 2
6 4
1 3
4 2
6 4
2 2
2 4
1 3
4 4
3 1
 1 10 10
1 11
2 8
1 13
2 2
1 5
1 9
1 3
1 7
1 15
1 17
 10 10 10
15 19
12 8
7 13
12 2
8 10
3 5
13 13
9 9
18 2
5 13
 2 3 20
1 3
1 1
1 1
1 3
2 4
2 4
1 1
2 6
1 1
1 3
3 1
2 6
1 1
2 4
1 1
4 6
1 3
1 3
1 1
3 1
 3 3 20
2 6
1 5
2 6
1 1
1 1
4 6
1 5
1 1
1 1
5 1
1 3
1 3
6 2
6 2
4 6
4 4
3 1
4 4
1 1
1 3
 10 10 10
10 6
7 5
9 13
13 15
19 7
11 13
5 17
16 6
2 14
7 15
 1 1 20
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 1
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2 2
 1 10 10
2 4
2 8
1 19
2 2
2 10
1 5
2 6
1 17
2 14
1 15
 3 3 20
4 2
3 5
3 1
2 2
3 1
5 5
6 2
6 4
1 5
2 6
5 5
3 1
5 3
3 3
2 6
3 3
2 6
3 3
4 2
1 5
 10 10 10
1 19
3 17
12 4
16 20
5 19
5 17
20 2
15 9
16 4
4 16
 1 10 10
2 4
2 8
2 6
1 17
1 9
1 15
2 10
1 11
2 2
1 13
 10 10 10
9 17
9 13
8 10
12 2
18 14
18 6
10 6
13 19
2 12
10 8
 10 10 10
2 6
5 9
5 15
1 19
6 6
8 4
11 9
13 11
4 6
10 2
 10 10 10
16 2
12 6
8 2
12 2
3 15
6 6
7 17
4 16
11 9
2 6
 10 10 10
18 2
15 13
9 19
6 10
20 18
15 19
2 2
11 13
17 13
3 15
 1 2 1
2 2
 1 10 10
2 4
1 13
1 7
2 14
1 19
1 17
2 2
1 15
1 11
2 6
 1 10 10
1 13
2 4
1 5
2 2
1 19
1 11
1 15
1 17
1 7
2 14
 1 10 10
1 17
2 4
2 2
1 11
1 15
1 19
2 6
2 8
2 12
1 13

YES
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/*
Though leaves are many , the root is one.
Through all the lying days of my youth
I swayed my leaves and flowers in the sun.
Now I may wither into the truth.
	  	  	- William Butler Yeats
*/
//#pragma GCC optimize("Ofast,no-stack-protector")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
//#pragma GCC target("avx,tune=native")
#include<bits/stdc++.h>
#pragma comment("-Wl,--stack=1024000000")
#include<ext/pb_ds/assoc_container.hpp>
using namespace std;
namespace fastio{
    char in[100000];
    int itr=0,llen=0;
    char get(){
        if(itr==llen)llen=fread(in,1,100000,stdin),itr=0;
        if(llen==0)return EOF;
        return in[itr++];
    }
    char out[100000];
    int itr2=0;
    void put(char c){
        out[itr2++]=c;
        if(itr2==100000){
            fwrite(out,1,100000,stdout);
            itr2=0;
        }
    }
    int clear(){
        fwrite(out,1,itr2,stdout);
        itr2=0;
        return 0;
    }
    int getint(){
        int ret=0;char ch=get();
        if(ch=='-')return -getint();
        while (ch<'0'||ch>'9'){
            ch=get();if(ch=='-')return -getint();
        }
        while ('0'<=ch&&ch<='9'){
            ret=ret*10-48+ch;
            ch=get();
        }
        return ret;
    }
    string getstr(){
        string ret="";
        char ch=get();
        while(ch==' '||ch=='\n')ch=get();
        while(ch!=' '&&ch!='\n')ret.push_back(ch),ch=get();
        return ret;
    }
    void putstr(string s){
        for(int i=0;i<s.size();i++)put(s[i]);
    }
    void putint(int x){
        if(x<0){
            put('-');
            putint(-x);
            return;
        }
        if(x==0){
            put('0');put(' ');
            return;
        }
        char c[40];int pos=0;
        while(x){
            c[pos++]='0'+x%10;
            x/=10;
        }
        for(int i=pos-1;i>=0;i--)put(c[i]);
        put(' ');
    }
    void putln(int x){
        if(x<0){
            put('-');
            putln(-x);
            return;
        }
        if(x==0){
            put('0');put('\n');
            return;
        }
        char c[40];int pos=0;
        while(x){
            c[pos++]='0'+x%10;
            x/=10;
        }
        for(int i=pos-1;i>=0;i--)put(c[i]);
        put('\n');
    }
}
using namespace fastio;
using namespace __gnu_pbds;
const int inf=0x3f3f3f3f;
const double eps=1e-6;
const int mod=1000000007;
typedef long long ll;
#ifndef LOCAL
#define cerr if(0)cout
#define eprintf(...) 0
#else
#define eprintf(...) fprintf(stderr, __VA_ARGS__)
#endif
inline string getstr(string &s,int l,int r){string ret="";for(int i=l;i<=r;i++)ret.push_back(s[i]);return ret;}
int modpow(int x,int y,int md=mod){int ret=1;do{if(y&1)ret=(ll)ret*x%md;x=(ll)x*x%md;}while(y>>=1);return ret;}
inline int Rand(){return rand()*32768+rand();}
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
int n,m,q;
ordered_set s[2][262144<<1];
inline void update(int t,int x,int y,int tag){
	x+=262144;
	if(tag==1)s[t][x].insert(y);
	else s[t][x].erase(y);
	while(x!=1){
		x>>=1;
		if(tag==1)s[t][x].insert(y);
		else s[t][x].erase(y);
	}
}
int query0(int x,int y){
	//[1,x] [1,y]
	int rt=1,l=0,r=262143,ret=0;
	while(rt<262144){
		int mid=(l+r)/2;
		if(x<=mid){
			rt<<=1;r=mid;
		}else{
			ret+=s[1][rt<<1].order_of_key(y+1);
			rt=rt<<1|1;l=mid+1;
		}
	}
	return ret+s[1][rt].order_of_key(y+1);
}
int query1(int x,int y){
	int rt=1,l=0,r=262143,ret=0;
	while(rt<262144){
		int mid=(l+r)/2;
		if(mid<x){
			rt=rt<<1|1;l=mid+1;
		}else{
			ret+=s[0][rt<<1|1].size()-s[0][rt<<1|1].order_of_key(y);
			r=mid;rt<<=1;
		}
	}
	return ret+s[0][rt].size()-s[0][rt].order_of_key(y);
}
int main(){
	n=getint();m=getint();q=getint();
	ll cnt=0;
	set<pair<int,int> >ban;
	while(q--){
		int x=getint(),y=getint();
		int X=x,Y=y;
		x++;y++;x^=1;y^=1;
		int type=x%2;
		x/=2;y/=2;
		if(!ban.count(make_pair(X,Y))){
			update(type,x,y,1);
			ban.insert(make_pair(X,Y));
			if(type==0)cnt+=query0(x+1,y+1);
			else cnt+=query1(x-1,y-1);
		}else{
			update(type,x,y,-1);
			ban.erase(make_pair(X,Y));
			if(type==0)cnt-=query0(x+1,y+1);
			else cnt-=query1(x-1,y-1);
		}
		putstr(cnt?"NO\n":"YES\n");
	}
	clear();
	return 0;
}