//{{{ #include using namespace std; #define rep(...) repN((__VA_ARGS__,rep3,rep2,loop,~))(__VA_ARGS__) #define loop(n) rep2(_loop_,n) #define rep2(i,n) rep3(i,0,n) #define rep3(i,begin,end) for(int i=(int)(begin),i##_end=(int)(end);i> N; rep(i, N) cin >> s[i]; rep(i, N) cin >> t[i]; rep(i, N){ if(s[i] != t[i]){ cout << i + 1 << endl; cout << s[i] << endl; cout << t[i] << endl; } } return 0; }