#include<stdio.h>
int main()
{
    int n,k,i;
    scanf("%d",&n);
    for(i=100;i>=1;i--)
    {
        for(k=1;k<=100;k++)
        {
            int day1 = i;

            int day2 = i + k;

            int day3 = i + 2 * k;

            int day4 = i + 3 * k;

            int day5 = i + 4 * k;

            int day6 = i + 5 * k;

            int day7 = i + 6 * k;

            if(52 * (day1 + day2 + day3 + day4 + day5 + day6 + day7) ==n)
            {
                printf("%d",i);
                printf("%d",k);
            }
            return 0;
        }
    }
}