def is_kadomatsu(c1,c2,c3): if (c2>c1 and c2>c3) or (c2<c1 and c2<c3): return True else: return False C = input().split() trial = [1,4] qi = -1 for i in range(3): try: C[i] = int(C[i]) except ValueError: qi = i res = '' for k in trial: C_ = C[:] C_[qi] = k if is_kadomatsu(*C_): res += str(k) print(res)