import sys
input = sys.stdin.buffer.readline

X, N, M = map(int, input().split())
As = list(map(int, input().split()))
Bs = list(map(int, input().split()))

mrmax = X in As
maxvalu = X in Bs

if not mrmax and not maxvalu:
    print('-1')
else:
    print(('Mr' if mrmax else '') + 'Max' + ('Valu' if maxvalu else ''))