#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) begin(v),end(v)
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
using ll = long long;
using pii = pair<int, int>;
constexpr ll INF = 1ll<<30;
constexpr ll longINF = 1ll<<60;
constexpr ll MOD = 1000000007;
constexpr bool debug = false;
//---------------------------------//

int main() {
	auto query = [](auto & ans) -> int {
		REP(i, ans.size()) printf("%d", ans[i]);
		puts("");
		fflush(stdout);
		int res;
		string s;
		cin >> res >> s;
		return res;
	};
	
	vector<int> ans(10);
	REP(i, 10) {
		int bef = query(ans);
		if (bef == 10) { return 0; }
		FOR(j, 1, 10) {
			int tmp = ans[i];
			ans[i] = j;
			int cur = query(ans);
			if (cur == 10) { return 0; }
			if (bef < cur) break;
			ans[i] = tmp;
		}
	}
}