# include<iostream> using namespace std; int main(){ int n,a[101][101],s1,s2; 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++){ s1=0; s2=0; for(int j=0;j<n;j++){ if(a[i][j]==1) s1++; if(a[j][i]==1) s2++; }if(s1%2!=0||s2%2!=0){ cout<<"Corrupt"; return 0; } }cout<<"OK"<<endl; return 0; }