#include <stdio.h>

// name: main
// parameters:
  // argc: # of arguments passed to the program
  // argv: argument vector. list of parameters that passed to the program
// return int which is a number
int main(int argc, char const *argv[])
{
  printf("number of args: %d\n", argc);
  printf("args: %s\n", argv[0]);
  return 0;
}