import sys,collections;sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

n=I()
for _ in range(n):
    a,b = Is()
    if a-b == 0:
        print("=")
    elif str(a-b).count("-") == 0:
        print(chr(62))
    else:
        print(chr(60))