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


char max_of3(int a, int b, int c);


int main()
{
    int a, b, c, max;

    puts("Enter a, b and c:");
    scanf("%d %d %d", &a, &b, &c);

    max = max_of3(a, b, c);

    printf("Maximum of them: %c\n", max);

    system("pause");

    return 0;
}

char max_of3(int fa, int fb, int fc)
{
    int toReturn;

    if (fa < fb)
    {
        toReturn = fb < fc ? 'c' : 'b';
    }
    else
    {
        toReturn = fa < fc ? 'c' : 'a';
    }

    return toReturn;
}