#include "bits/stdc++.h"
using namespace std;

//#define int long long
#define DBG 0
#define dump(o) if(DBG){cerr<<#o<<" "<<o<<endl;}
#define dumpc(o) if(DBG){cerr<<#o; for(auto &e:(o))cerr<<" "<<e;cerr<<endl;}
#define rep(i,a,b) for(int i=(a);i<(b);i++)
#define rrep(i,a,b) for(int i=(b)-1;i>=(a);i--)
#define each(it,c) for(auto it=(c).begin();it!=(c).end();it++)
#define all(c) c.begin(),c.end()
const int INF = sizeof(int) == sizeof(long long) ? 0x3f3f3f3f3f3f3f3fLL : 0x3f3f3f3f;
const int MOD = (int)(1e9 + 7);

signed main() {
	string S, T; cin >> S >> T;
	int life = 2;
	int s = 0, t = 0;
	rep(i, 0, S.size()) {
		if (i % 2 == 1) {
			while (t < T.size() && S[i] != T[t])
				t++;
			t++;
		}
		else {
			while (s < S.size() && S[i] != S[s])
				s++;
			s++;
		}
	}
	dump(s); dump(t);
	if (t > T.size() || s > S.size())life--;
	s = 0, t = 0;
	rep(i, 0, S.size()) {
		if (i % 2 == 0) {
			while (t < T.size() && S[i] != T[t])
				t++;
			t++;
		}
		else {
			while (s < S.size() && S[i] != S[s])
				s++;
			s++;
		}
	}
	dump(s); dump(t);
	if (t > T.size() || s > S.size())life--;
	if (life) cout << "Yes" << endl;
	else cout << "No" << endl;
	return 0;
}