#include<bits/stdc++.h> using namespace std; int a[10][10]; int main(){ int n,x = 0; cin>>n; for (int i = 0;i <= n - 1;i++){ for (int j = 0;j <= n - 1;j++){ cin>>a[i][j]; } } for (int i = 0;i <= n - 1;i++){ for (int j = 0;j <= n - 1;j++){ if (a[i][j] == 1){ x += 1; } } } if (i % 2 == 0){ cout<<"OK"; } else{ cout<<"Corrupt"; } return 0; }