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



int main()
{
	int money = 0,another = 0,calc = 0;

	printf("Enter how many money do you need now: ");
	scanf("%d",&money);
	if (money % 10 != 0 || money < 0)
	{
		printf("%d", -1);
		return -1;
	}
	printf("500 - %d\n", money / 500);
	calc += money / 500;
	another = money % 500;
	printf("200 - %d\n", another / 200);
	calc += another / 200;
	another = another % 200;
	printf("100 - %d\n", another / 100);
	calc += another / 100;
	another = another % 100;
	printf(" 50 - %d\n", another / 50);
	calc += another / 50;
	another = another % 50;
	printf(" 20 - %d\n", another / 20);
	calc += another / 20;
	another = another % 20;
	printf(" 10 - %d\n", another / 10);
	calc += another / 10;
	another = another % 10;
	printf("Money bills - %d\n", calc);

	getchar();
}