#include<stdio.h>
#include<stdlib>

int main(){
    long long n;
    scanf("lld",&n);
    
    int isNegative = 0;
    if(n<0){
        isNegative = 1;
        n=-n;
    }
    char str[50];
    sprintf(str,"%lld",n);
    
    for (int i = 0;str[i]!='\0';i++){
        if(str[i] == '0')
        str[i]='1';
    }
    if(isNegative)
    printf("-%s",str);
    else
    printf("%s",str);
    return 0;
}