#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void replacezerowithones(int n)
{
    char str[20];
    sprinter(str,"%d", n);
    for (int i = 0; str[i] !='\0'; i++)
    {
        if (str[i] == '0')
        {
            str[i] = '1';
        }
        printf("%s",str);
    }
    int main()
    {
        int n;
        scanf("%d",&n);
        replacezerowithones(n);
        return 0;
    }