Gradient_Of

#include <iostream>

using namespace std;

int main()
{
	int r1, r2, g1, g2, b1, b2, n, i;
	cin >> r1 >> g1 >> b1 >> r2 >> g2 >> b2 >> n;

	int dr, dg, db;
	dr = r2-r1;
	dg = g2-g1;
	db = b2-b1;

	cout << r1 << ", " << g1 << ", " << b1 << '\n';
	--n;
	for(i = 1; i <= n; ++i)
		cout << (int)(r1+dr*i/(double)n) << ", " << (int)(g1+dg*i/(double)n) << ", " << (int)(b1+db*i/(double)n) << '\n';

	return 0;
}