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

unsigned obrni(unsigned x)
{
    unsigned cifra, obrnut_broj=0;
    unsigned osnova=10000;
    while(x>0) {
        cifra=x%10;
        x/=10;
        obrnut_broj=obrnut_broj+cifra*osnova;
        osnova/=10;
    }
    return obrnut_broj;
}

int main()
{
    unsigned x;
    scanf("%u/n", &x);
    if (x < 10000 || x > 99999) {
        fprintf(stderr, "Niste uneli petocifren broj!\n");
        exit(EXIT_FAILURE);
    }

    printf("%u\n", obrni(x));
    return 0;
}