#include <iostream> #include <string> #include <vector> #include <utility> using namespace std; int main(void){ int n; cin >> n; string x[n],y[n]; for(int i=0;i<n;i++) cin >> x[i]; for(int i=0;i<n;i++) cin >> y[i]; for(int i=0;i<n;i++) if(x[i]!=y[i]){ cout << i+1 << "\n" << x[i] << "\n" << y[i] << "\n"; break; } return 0; }