#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define DMAX 201 #define DMAX2 21 #define MOD 1999999973 #define ll long long #define ull unsigned long long int N = 4, grid[DMAX][DMAX]; void find_0(int sr, int sc, int fr, int fc){ int r[8] = {sr, fr / 2, fr / 2 + 1, fr , sr , fr / 2, fr / 2 + 1, fr}; int c[8] = {sr, fc / 2, sc , fc / 2, fc / 2 + 1, fc , fc / 2 + 1, fc}; int v = -1; for (int i = 0; i < 4; ++i) { printf("%d %d\n", r[i * 2 + 1], c[i * 2 + 1]); fflush(stdout); scanf("%d", &v); if (v == 0) return; else if ( v > 0 ) return find_0(r[i * 2], c[i * 2], r[i * 2 + 1], c[i * 2 + 1]); } } int main() { // freopen("input.txt", "r", stdin); // freopen("output.txt", "w", stdout); find_0(0, 0, N - 1, N - 1); return 0; }