View Code of Problem 31

#include<stdio.h>
#include<math.h>
#include<string.h>
int main() {
	long int k;
	long int i;
	while (scanf("%ld", &k) != EOF) {
		if (k < 1)
			break;
		else {
			i = 23 + 3 * 5 * 7*(k - 1);
			printf("%ld\n", i);
		}
	}
	return 0;
}