5
5 3
2 4
3 1
4 5
 4
2 4
3 2
2 1
 5
5 3
2 4
3 1
4 5
 2
1 2
 4
3 4
2 3
3 1
 10
8 10
2 9
7 8
4 1
7 3
4 7
2 5
2 4
4 6
 5
3 4
3 2
3 1
1 5
 3
1 2
2 3
 5
1 2
1 3
1 4
1 5

1 2
2 3
2 4
 1 3
2 4
3 5
4 5
 1 2
 1 3
2 3
3 4
 1 4
2 4
2 5
2 9
3 7
4 6
4 7
7 8
8 10
 1 3
1 5
2 3
3 4
 1 2
2 3
 1 2
1 3
1 4
1 5

def answer():

    edges=[]
    for i in range(1,n + 1):

        if(not v[i]):

            print('?',i)

            d=list(map(int,input().split()))

            for j in range(len(d)):

                if(d[j]==1):
                    edges.append([i,j+1])

                    v[j + 1]=True
            
            v[i]=True

    print('!')
    for x in edges:print(*x)


n=int(input())

v=[False]*(n + 1)

answer()
