使用变量值进行简单计算

#include <stdio.h>

int main(voID) {
  int total;
  int cats;
  int dogs;
  int ponIEs;
  int others;

  cats = 4;
  dogs = 3;

  ponIEs = 5;
  others = 6;

  total = cats + dogs + ponIEs + others;

  printf("We have %d pets in total\n", total);   // Output the result
  return 0;
}