n=int(input())
for _ in range(0, n):
    listA = list(map(int, input().split()))
    a = listA[0]
    b = listA[1]
    if a == b: 
        print('=')
    elif a == max(a, b): 
        print(chr(ord(";")+3))
    elif b == max(a, b): 
        print(chr(ord(';')+1))