#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define fi first
#define se second
#define dd(x) cout<<#x<<" is "<<x<<endl;
#define dd2(x,y) cout<<#x<<" is "<<x<<" "<<#y<<" is "<<y<<endl;
typedef pair<int,int> pii;
signed main(){
//ios::sync_with_stdio(0); cin.tie(0);
int h,w,r,c; cin>>h>>w;
cout<<"? ";
for(int i=0; i<w; i++) cout<<">";
cout<<endl;
cin>>r>>c;
if(c != w-1){
cout<<"! 0 "<<c+1<<endl;
return 0;
}
cout<<"? ";
for(int i=0; i<h; i++) cout<<"v";
cout<<endl;
cin>>r>>c;
if(r != h-1){
cout<<"! "<<r+1<<" 0"<<endl;
return 0;
}
int n = max(h,w);
int row=-1, col=-1;
cout<<"? ";
for(int i=1; i<n; i++){
if(i%2){
cout<<"v";
for(int j=0; j<i; j++) cout<<">";
for(int j=0; j<i; j++) cout<<"^";
} else {
cout<<">";
for(int j=0; j<i; j++) cout<<"v";
for(int j=0; j<i; j++) cout<<"<";
}
}
cout<<endl;
cin>>r>>c;
if(n%2){
if(r != h-1) row = r+1;
} else {
if(c != w-1) col = c+1;
}
cout<<"? ";
for(int i=1; i<n; i++){
if(i%2){
cout<<">";
for(int j=0; j<i; j++) cout<<"v";
for(int j=0; j<i; j++) cout<<"<";
} else {
cout<<"v";
for(int j=0; j<i; j++) cout<<">";
for(int j=0; j<i; j++) cout<<"^";
}
}
cout<<endl;
cin>>r>>c;
if(n%2){
if(c != w-1) col = c+1;
} else {
if(r != h-1) row = r+1;
}
if(row != -1 and col != -1){
cout<<"! "<<row<<" "<<col<<endl;
return 0;
}
cout<<"? ";
if(row != -1){
for(int i=0; i<row; i++) cout<<"v";
for(int i=0; i<w-1; i++) cout<<">";
cout<<endl;
cin>>r>>c;
cout<<"! "<<row<<" "<<c+1<<endl;
} else {
for(int i=0; i<col; i++) cout<<">";
for(int i=0; i<h-1; i++) cout<<"v";
cout<<endl;
cin>>r>>c;
cout<<"! "<<r+1<<" "<<col<<endl;
}
return 0;
}
