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

void change(char astring[50])
{
    sprintf(astring,"is that cool?");
}

int main()
{
    char mystring[50] = "hello there";

    printf("%s\n",mystring);

    sprintf(mystring,"my name is");
    printf("%s\n",mystring);

    sprintf(mystring,"chris");
    printf("%s\n",mystring);

    change(mystring);
    printf("%s\n",mystring);

    return 0;
}