#include<stdio.h>
int main()
{
    int x = 0;
    int y = 0;
    scanf("%d", &x);
    if (x < 0)
        y = 1;
    else if (x == 0)
        y = 0;
    else
        y = -1;
    printf("%d", y);
    return 0;
}

#include<stdio.h>
int main()
{
    int sconds = 0;
    int h = 0;
    int m = 0;
    int s = 0;
    scanf("%d", &sconds);
    h = sconds / 3600;
    m = (sconds % 3600) / 60;
    s = sconds % 60;
    printf("%d %d %d", h, m, s);
    return 0;
}

#include<stdio.h>
int main()
{
    int score = 0;
    int i = 0;
    int sum = 0;
    float ret = 0.0f;
    for (i = 0; i < 5; i++)
    {
        scanf("%d", &score);
        sum =sum+score;
    }
    ret = sum / 5.0;
    printf("%.1f", ret);
    return 0;
}

#include<stdio.h>
int main()
{
    int n = 0;
    scanf("%d", &n);
    while (n)
    {
        printf("%d", n % 10);
        n = n / 10;
    }
    return 0;
}

#include<stdio.h>
int main()
{
    int a = 0;
    int b = 0;
    int c = 0;
    int d = 0;
    scanf("%1d%1d%1d%1d", &a, &b, &c, &d);
    printf("%d%d%d%d\n", d, c, b, a);
    return 0;
}