"""
いんたらくてぃぶおおいなー
51 桁ってなんの制約なんだ
"""

from math import isqrt

mod = 998244353

II = lambda : int(input())
MI = lambda : (int(_) for _ in input().split())

n = II()
x = []
for i in range(n - 1):
    print("?", i, n-1)
    p = II()
    x.append(p)

for i in range(n-1):
    for j in range(i+1, n-1):
        if x[i] != 0 and x[j] != 0:
            print("?", i, j)
            p = II()
            q = isqrt(x[i] * x[j] // p)
            x = [e//q for e in x]
            x.append(q)
            x = x[::-1]
            print("!", "".join(map(str, x)))
            exit()

for i in range(n-1):
    if x[i] != 0:
        if isqrt(x[i]) ** 2 == x[i]:
            q = isqrt(x[i])
            x = [e//q for e in x]
            x.append(q)
            x = x[::-1]
            print("!", "".join(map(str, x)))
            exit()

print("! -1")