#include "bits/stdc++.h"
using namespace std;
int n, m, k, ask;
int dx[]={+1,-1,0,0,0,0};
int dy[]={0,0,+1,-1,0,0};
int dz[]={0,0,0,0,+1,-1};
map<vector<int>, int> value, vis;
int get(int x, int y, int z){
if (x < 1 or y < 1 or z < 1 or x > n or y > m or z > k)
return 0;
if (value.find({x, y, z}) != value.end())
return value[{x, y, z}];
// ask += 1;
// return value[{x, y, z}] = rand()%5;
cout<<"? "<<x<<" "<<y<<" "<<z<<endl;
int resp;
scanf("%d", &resp);
return resp;
}
int main(){
// n = 100;
// m = 100;
// k = 100;
// cout<<"board size "<<n*m*k<<endl;
scanf("%d%d%d", &n, &m, &k);
int K = 7; //sample size, siuuuu
int sx, sy, sz, record = 0;
while (K--){
int x = rand()%n+1;
int y = rand()%m+1;
int z = rand()%k+1;
if (get(x, y, z) > record){
record = get(x, y, z);
sx = x;
sy = y;
sz = z;
}
}
while (1){
int stop = 1;
for (int i = 0; i < 6; i++)
stop &= vis[{sx, sy, sz, i}];
if (stop)
break;
int dir = rand()%6;
while (vis[{sx, sy, sz, dir}])
dir = rand()%6;
vis[{sx, sy, sz, dir}] = 1;
sx += dx[dir];
sy += dy[dir];
sz += dz[dir];
if (get(sx, sy, sz) > record)
record = get(sx, sy, sz);
else{
sx -= dx[dir];
sy -= dy[dir];
sz -= dz[dir];
}
}
cout<<"! "<<sx<<" "<<sy<<" "<<sz<<endl;
// cout<<"asked "<<ask<<endl;
}
