#include <stdio.h>
#include <math.h>
int main() {
printf("%f\n", round(0.60));
printf("%f\n", round(0.40));
printf("%f\n", round(5));
printf("%f\n", round(5.1));
printf("%f\n", round(-5.1));
printf("%f\n", round(-5.9));
return 0;
}