int main()
{
    char c1='0'+12, c2='0'+14;
    int n; scanf("%d", &n);
    while(n){
        n--;
        int a, b; scanf("%d %d", &a, &b);
        int d=a-b;
        if(d==0){
            printf("=\n");
            continue;
        }
        char s[100]={'\0'};
        sprintf(s, "%d", d);
        if(s[0]=='-') printf("%c\n", c1);
        else printf("%c\n", c2);
    }
    return 0;
}