n=int(input())
for i in range(n):
    a,b=list(map(int,input().split()))
    if a==b:
        print("=")
    else:
        c=a-b;
        while c!=1 and c!=-1:
            c=int(c/2);
        if c==1:
            print(chr(62))
        else:
            print(chr(60))