func_code_string: #include <bits/stdc++.h>      template <class T>   inline void read(T &res)   {    res = 0; bool bo = 0; char c;    while (((c = getchar()) <  0  || c >  9 ) && c !=  - );    if (c ==  - ) bo = 1; else res = c - 48;    while ((c = getchar()) >=  0  && c <=  9 )     res = (res << 3) + (res << 1) + (c - 48);    if (bo) res = ~res + 1;   }      const int N = 505;      int n, m, a[N][N];      int main()   {    read(n); read(m);    for (int i = 1; i <= n; i++)     for (int j = 1; j <= m; j++)      read(a[i][j]);    for (int i = 1; i <= n; i++)    {     for (int j = 1; j <= m; j++)      printf( %d  , i + j & 1 ? 720720 : 720720 - a[i][j]       * a[i][j] * a[i][j] * a[i][j]);     puts(  );    }    return 0;   }