typedef R6 = (int, int, int, int, int, int);

typedef R6as3of2 = ((int, int), (int, int), (int, int));

R6 shuffle6a(R6 r) {}

R6as3of2 shuffle6b(R6as3of2 r) {}

main() {}

sort4(int a0, int a1, int a2, int a3) {}