def main():
    import sys
    input = sys.stdin.readline

    N = int(input())
    for _ in range(N):
        a, b = map(int, input().split())
        if a == b:
            print('=')
        elif a-b == abs(a-b):
            print(chr(62))
        else:
            print(chr(60))


if __name__ == '__main__':
    main()