#include <stdio.h>
#include <stdlib.h>
#include "../data_libs/data_io.h"
#include "data_process.h"
int main(void)
{
int n;
if (scanf("%d", &n) != 1 || n <= 0)
{
printf("n/a");
return 1;
}
double data[n];
input(data, n);
if (normalization(data, n))
output(data, n);
else
printf("ERROR");
return 0;
}