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#include <cstdlib>
#include <cstdio>

int main(int argc, char **argv)
	{
		int n = 0;
		scanf("%d", &n);

		int count = 0;
        for (int a = 1; a <= n / 6; a++) {
            int b = 2 * a;
            int c = n - a - b;
            while (b < c) {
                if ((c % b) == 0) {
                    count++;
                }
                b = b + a;
                c = n - a - b;
            }
        }
		printf("%d", count);
		return 0;
	}