#include <bits/stdc++.h>   using namespace std;   int u[1005];   int v[1005];   int main() {     int n, k, i;     cin >> n >> k;     int a, b, c, d;     int t;     cin >> a >> b >> c >> d;     if (n == 4) {       cout <<  -1  << endl;     } else if (k < n + 1) {       cout <<  -1  << endl;     } else {       cout << a <<    ;       cout << c <<    ;       for (i = 1; i <= n; i++) {         if (i == a || i == b || i == c || i == d) {           continue;         }         cout << i <<    ;       }       cout << d <<    ;       cout << b << endl;       cout << c <<    ;       cout << a <<    ;       for (i = 1; i <= n; i++) {         if (i == a || i == b || i == c || i == d) {           continue;         }         cout << i <<    ;       }       cout << b <<    ;       cout << d << endl;     }     return 0;   }   