#include <iostream>
using namespace std;
#define hour 24
int main() {
	cout <<"一天有"<<hour<<"小时"<<endl;
    const int day=7;
    cout<<"一周有"<<day<<"天"<<endl;
    int a=10;
    cout<<"内存大小为"<<a<<"MB"<<endl;
    int num1=999;
    int num2=999;
    int sum=num1+num2;
    cout<<"该笔消费总额为"<<sum<<"元"<<endl;
    cout<<"该整型占用内存大小为"<<sizeof(long)<<endl;
	return 0;
}