#include <stdio.h>
int digitCount(int n){
int counts=0;
while(n!=0){
counts++;
n=n/10;
}
return counts;
}
void replace(int n){
int count=digitCount(n);
int A[count];
int i=count-1;
while(n!=0){
int y=n%10;
if(y==0){
A[i]=1;
i--;
}
else{
A[i]=0;
i--;
}
n=n/10;
}
for(int j=0;j<count;j++){
printf("%d",A[j]);}
}
int main()
{
int n;
scanf("%d",&n);
replace(n);
return 0;
}