Robor_move

// Example program
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;
int main()
{
    int n,m;
    cin>>n>>m;
    char a[n][m];
    for(int i=0;i<n;i++)
        for(int j=0;j<m;j++)
            a[i][j]='.';

    string commands;
    cin>>commands;
    int dot_now_x = 0;
    int dot_now_y = 0;
    cout<<commands.length()<<"\n";
    for(int i=0;i<commands.length();i++){
        if(commands[i]=='<' or commands[i]=='^' or commands[i]=='v' or commands[i]=='>')
            switch (commands[i]){
                case '>':
                   if(dot_now_x+1 < m) dot_now_x++;
                   break;
                case '<':
                   if(dot_now_x-1 >= 0) dot_now_x--;
                   break;
                case 'v':
                   if(dot_now_y+1 < n) dot_now_y++;
                   break;
                case '^':
                   if(dot_now_y-1>= 0) dot_now_y--;
                   break;
                default: break;
            }
        else
            a[dot_now_y][dot_now_x]=commands[i];
   }

    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++)
            cout<<a[i][j];
        cout<<"\n";
    }
}