#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>
#include <math.h>

double max(double a, double b) {
	if(a < b) return b;
	return a;
}

int main() {
	double val[41];
	double cur_value = -8;
	for(int i = 0; i < 41; i ++)
	{
		val[i] = sin(cur_value*0.6) * 5.0;
		cur_value += 0.4;
	}
	double maximum = -5.0, sum = 0, cnt = 0;
	for(int i = 0; i < 41; i ++)
	{
		maximum = max(maximum, val[i]);
		if(val[i] < 0.0)
		{
			sum += val[i];
			cnt++;
		}
	}
	printf("%.6f\n%.6f\n", maximum, sum/cnt);
}