我辛辛苦苦敲了五分钟，居然没数据awa...

#include<bits/stdc++.h>
#define int long long
#define INF 0x3f3f3f
using namespace std;
int m[50]={0,0,31,28,31,30,31,30,31,31,30,31,30,31};
int f[50];
int x,y;
signed main(){
	for(int i=1;i<=12;i++)
		f[i]=f[i-1]+m[i];
	scanf("%d，%d",&x,&y);
	int k=f[x]+y;
	int d=(k%7+5)%7;
	cout<<"星期";
	if(d==1)cout<<"一";
	else if(d==2)cout<<"二";
	else if(d==3)cout<<"三";
	else if(d==4)cout<<"四";
	else if(d==5)cout<<"五";
	else if(d==6)cout<<"六";
	else if(d==0)cout<<"日";
	cout<<"，";
	if(d==6||d==0)cout<<"NO";
	else cout<<"YES";
	return 0;
}