#include <stdio.h>
#include <stdlib.h>
int main()
{
    char string[50];

    scanf("%s", string);

    const char karakter = 'a';

    char *ret = strchr(string, karakter);

    if (ret)
        printf("Pronadjeno 'a' u stringu '%s'.", string);
    else printf("Nije pronadjeno 'a' u stringu '%s'.", string);

    return 0;
}