#include<bits/stdc++.h> using namespace std; typedef long long i64; typedef long long ll; int _T = 1; int dir[2][4] = {{0,0,-1,1},{-1,1,0,0}},n,m; ll f[5][1005][1005]; char a[1005][1002]; void solve(){ cin >> n >> m; for(int i = 1;i <= n; ++i) { for(int j = 1;j <= m; ++j) cin...