define _CRT_SECURE_NO_WARNINGS

include <stdio.h>

include <string.h>

int main(void)
{
int n,a[10];
int i=0,j=0,t;

    while (scanf("%d", &a[i])!=EOF&&a[i]!=0)
    {
        a[j] = a[i];
        j++;
        i++;
    }

for (t= 0; t < j; t++)
{
    a[t] = a[t] / 2;
    printf("%d \n", a[t]);
}


return 0;

}