OR-2005-zad3

#include <stdio.h>
#include <string.h>

int ubaci (int n,int a) {
    int nb=0,cifra,i=1,k=1;
    while (n!=0) {
            cifra=n%10;
    if (i%2==0) nb+=a*k;
    else nb+=cifra*k;
    n/=10;
    k*=10;
    i++;
    }

    return nb;
}

int main () {
    printf("%d",ubaci(8455,9));
    return 0;
}