# include<iostream> using namespace std; int main(){ int n,a[10][10],sum=0,sum1=0; cin>>n; for(int i=0;i<n;i++){ for(int j=0;j<n;j++) cin>>a[i][j]; } for(int i=0;i<n;i++){ sum=0,sum1=0; for(int j=0;j<n;j++){ if(a[i][j]==1) sum++; if(a[j][i]==1) sum1++; } if(sum%2!=0||sum1%2!=0){ cout<<"Corrupt"; return 0; } } cout<<"OK"; return 0; }