#include<stdio.h>
#include<math.h>
int main()
{
    int n = 0;
    int i = 0;
    int sum = 0;
    scanf("%d",&n);
    while(n)
    {
        int m = n%10;
        if(m%2 == 1)
            m=1;
        else
            m=0;
        sum += m*pow(10,i);
        ++i;
        n/=10;
    }
    printf("%d\n",sum);
    return 0;
}