#include <iostream>
#include <algorithm>
using namespace std;
const int N = 1e3+10;
int a[N][N], dp[N][N];
int main() {
int n,m;
cin >> n>>m;
for (int i = 1; i <= n; i++){
for (int j = 1; j <= m; j++){
cin>>a[i][j];
}
}
for (int i = 0; i <= n; i++){
for (int j = 0; j <= m; j++){
dp[i][j]=2e9;
}
}
cout<<dp[n][m];
return 0;
}