#include <bits/stdc++.h>
using namespace std;
int h,w;
void askline(int r){
cout<<"? ";
for(int i = 1; i < r; i++)cout<<"v";
for(int j = 1; j < w; j++)cout<<">";
cout<<endl;
int i,j; cin>>i>>j; i++; j++;
if(i != r)cout<<"! "<<r-1<<" 0"<<endl;
else cout<<"! "<<i-1<<" "<<j+1 -1<<endl;
}
void askcolumn(int c){
cout<<"? ";
for(int j = 1; j < c; j++)cout<<">";
for(int i = 1; i < h; i++)cout<<"v";
cout<<endl;
int i,j; cin>>i>>j; i++; j++;
cout<<"! "<<i+1 -1<<" "<<j -1<<endl;
}
int main(){
cin>>h>>w;
if(h == 1){ askline(1); return 0;}
if(w == 1){ askcolumn(1); return 0;}
int mid = h/2;
cout<<"? ";
for(int i = 1; i < mid+1; i++)cout<<"v";
for(int j = 1; j <= w; j++){
for(int i = mid+1; i < h; i++)cout<<"v";
for(int i = h; i > mid+1; i--)cout<<"^";
if(j != w)cout<<">";
}cout<<endl;
int r,c; cin>>r>>c; r++; c++;
if(r == mid+1 && c != w){ cout<<"! "<<mid+1 -1<<" "<<c-1 -1<<endl; return 0; }
if(r == 1){ askcolumn(1); return 0; }
if(r != mid+1) { askline(h-(mid-r)); return 0; }
cout<<"? ";
for(int i = 1; i < mid+1; i++)cout<<"v";
cout<<">";
for(int j = 2; j <= w; j++){
for(int i = mid; i > 1; i--)cout<<"^";
if(j != w) for(int i = 1; i < mid; i++)cout<<"v";
if(j != w)cout<<">";
}
cout<<"^";
for(int j = w; j > 1; j--)cout<<"<";
cout<<endl;
cin>>r>>c; r++; c++;
if(c == 0)cout<<"! "<<r-1 -1<<" "<<w -1<<endl;
else cout<<"! "<<r-1<<" "<<c-1 -1<<endl;
}
