parse CSV Character array in C

#include<string.h>
#include<stdio.h>
#include <stdlib.h> //contians atoi for string to int conversion
/*
 * This program is a simple? way of parsing a csv character array
 *
 *
 * */
int main()
{
int x,y,z;
    char input[16] = "545,394,2";
    char *p;
    p = strtok(input, ",");
    if(p){
     x=atoi(p);
    }
    p = strtok(NULL, ",");

    if(p){
    y=atoi(p);
    }
    p = strtok(NULL, ",");
    if(p){
   z=atoi(p);
    }
    printf("X: %d\n", x);
    printf("Y: %d\n", y);
    printf("Z: %d\n", z);

    return 0;
}