#include<stdio.h>
int main()
{
double a;
scanf("%lf",&a);
if(a>0)
{
printf("%d\n",(int)(a+0.5));
}
else
printf("%d\n",(int)(a-0.5));
return 0;
}
#include<stdio.h>
int main()
{
double a;
scanf("%lf",&a);
if(a>0)
{
printf("%d\n",(int)(a+0.5));
}
else
printf("%d\n",(int)(a-0.5));
return 0;
}