#include <stdio.h>
#include <stdlib.h>

int main(){
    int N;
    long long a,b;
    scanf("%d",&N);
    while(N--){
        scanf("%lld %lld",&a,&b);
        char c;
        if(a == b) c = '=';
        else if(abs(a-b)/(a-b)==1) c = '='+1;
        else c='='-1;
        printf("%c\n",c);
    }
}