#include <stdio.h>

int main()
{
    int n = 0;
    scanf("%d", &n);

    int ret = 0;
    int i = 0;
    while (n)
    {
        int w = n % 10;
        if (0 == w % 2)
        {
            w = 0;
        }
        else
        {
            w = 1;
        }
        ret += w * pow(10, i++);
        n /= 10;
    }

    printf("%d\n", ret);

    return 0;
}