#include <bits/stdc++.h>

using namespace std;

int h, w, x, y;

int main() {
    cin >> h >> w;
    string s;
    for(int i=1; i<=h; i++) {
        s.append("<");
    }
    for(int i=1; i<=w; i++) {
        s.append("^");
    }
    cout << "? " << s << endl;
    cin >> x >> y;
    if(y != 0) {
        cout << "! " << x << " " << y-1; 
        return 0;
    }
    if(x != 0) {
        cout << "! " << x-1 << " " << y;
        return 0;
    }
    for(int i=1; i<=w; i+= 2) {
        for(int j=1; j<=h; j++) {
            s.append("v");
        }
        s.append(">");
        for(int j=1; j<=h; j++) {
            s.append("^");
        }
        s.append(">");
    }
    cout << "? " << s << endl;
    cin >> x >> y;
    if(x == 0 || x == h-1) {
        cout << "! " << x << " " << y+1 << "\n";
    }
    if(y%2 == 0) {
        cout << "! " << x+1 << " " << y; 
    } else {
        cout << "! " << x-1 << " " << y;
    }
    return 0;
}