func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, m;   string we, ns, sol =   ;   void fast() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);   }   int main() {     fast();     cin >> n >> m;     cin >> we;     cin >> ns;     sol += we[0];     sol += we.back();     sol += ns[0];     sol += ns.back();     if (sol ==  <>v^  || sol ==  ><^v ) {       cout <<  YES ;     } else {       cout <<  NO ;     }     return 0;   }   