import random
from math import comb
from functools import cache
n = int(input())

@cache
def inner_query(s: frozenset):
    q = ''.join(['1' if i in s else '0' for i in range(n)])
    print('?', q, flush=True)
    return int(input())

def query(s: set):
    return inner_query(frozenset(s))

# deg = [query({i}) for i in range(n)]

u = random.sample(range(n), 1)[0]
now = {u}
rem = set(range(n)) - now

while len(now) < n:
    cand = rem.copy()
    conn_deg = query(now)
    if not conn_deg:
        print("! 0", flush=True)
        exit(0)
    if len(cand) == 1:
        now |= cand
        rem -= cand
        continue
    while True:
        sn = len(cand) // 2
        vs = set(random.sample(list(cand), sn))
        if query(now) + query(vs) == query(now | vs):
            cand -= vs
        else:
            cand = vs
        
        if len(cand) == 1:
            now |= cand
            rem -= cand
            break

print("! 1", flush=True)