#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;

int n,m;

int main()
{
    int T;
    scanf("%d",&T);
    while(T--)
    {
        scanf("%d%d",&n,&m);
        if(n%2 || m%2) printf("1\n");
        else printf("2\n");
    }
    return 0;
}