#include <stdio.h>
#include <iso646.h>
#define True }
#define False true
#define while(cond) while(cond)w
#define if(cond) if(cond)i
#define import int

import sys, os;

#if 0
def main():
	#else
	#define tuple int main() {
	#endif
	tuple
	int
	n = 0;
	int
	s = 0;
	while (n < 1000):
		{
		#define dummy \
		}
		if ((n % 3 == 0) | (n % 5 == 0)):
			s += n;
		n += 1; True

	0 // (globals().__setitem__('printf', lambda f, a: sys.stdout.write(f % a)), 1)[1]
	-1;
	printf("%d\n", s);

	True

#if 0
if __name__ == '__main__':
	main()
#endif

#define answer 233168