#include <stdio.h>
	#include <stdlib.h>

	int main(void) {
		int count = rand() % 1024 + 2;
		int arr[count];
		arr[count-1] = 3;
		for(int i = 0; i < count; ++i)
		{
			arr[i] = i * 3;
		}
		printf("%d %d %d", count - 1, arr[0], arr[count-1]);
		return 0;
	}