/*
* Author: Arpit Bhayani
* https://arpitbhayani.me
*/
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <climits>
#include <deque>
#include <iostream>
#include <list>
#include <limits>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <vector>
#define ll long long
#define MIN(a, b) a < b ? a : b
#define MAX(a, b) a > b ? a : b
using namespace std;
int readline(char *str) {
int i = 0;
char ch;
while((ch = getchar()) != '\n') {
str[i++] = ch;
}
str[i] = '\0';
return i;
}
int main(int argc, char *argv[]) {
int t, x;
scanf("%d", &t);
int c0 = 0, cp = 0, cn = 0;
for(int i = 0; i < t; i++) {
cin >> x;
if(x > 0) {
cp++;
}
else if(x < 0) {
cn++;
}
else {
c0++;
}
}
printf("%f\n%f\n%f\n", cp/(float)t, cn/(float)t, c0/(float)t);
return 0;
}
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