// editor2
#include<stdio.h>
int main() {
    long long n;
    scanf("%11d", &n);
    
    long long sign = 1;
    if (n < 0) {
        sign = -1;
        n = -n;
    }
    long long result = 0, place = 1;
    
    while (n > 0) {
        int digit = n % 10;
        if (digit == 0)
            digit = 1;
            
            result = digit * place + result;
            
            place *= 10;
            n /=10;
    }
    printf("%lld", result * sign);
    return 0;
}