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Codeforces New Year and Days

2016-07-21 19:16 330 查看
New Year and Days
Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u
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Description

Today is Wednesday, the third day of the week. What's more interesting is that tomorrow is the last day of the year 2015.

Limak is a little polar bear. He enjoyed this year a lot. Now, he is so eager to the coming year 2016.

Limak wants to prove how responsible a bear he is. He is going to regularly save candies for the entire year 2016! He considers various saving plans. He can save one candy either on some fixed day of the week or on some fixed day of the month.

Limak chose one particular plan. He isn't sure how many candies he will save in the 2016 with his plan. Please, calculate it and tell him.

Input

The only line of the input is in one of the following two formats:

"x of week" where x (1 ≤ x ≤ 7)
denotes the day of the week. The 1-st day is Monday and the 7-th one is Sunday.
"x of month" where x (1 ≤ x ≤ 31)
denotes the day of the month.

Output

Print one integer — the number of candies Limak will save in the year 2016.

Sample Input

Input
4 of week


Output
52


Input
30 of month


Output
11


Hint

Polar bears use the Gregorian calendar. It is the most common calendar and you likely use it too. You can read about it on Wikipedia if you want to – https://en.wikipedia.org/wiki/Gregorian_calendar.
The week starts with Monday.

In the first sample Limak wants to save one candy on each Thursday (the 4-th day of the week). There are 52 Thursdays in the 2016. Thus, he will save 52 candies
in total.

In the second sample Limak wants to save one candy on the 30-th day of each month. There is the 30-th day in exactly 11 months in the 2016 — all months but February. It means that Limak will save 11 candies
in total.

找规律题目 

已知平年有52周零1天 

闰年有52周零2天

2016年为闰年,并且第一天为周五 

所以一年有53个周五周六,其余为52
一年有12个月有29号 

一年有11个月有30号 

一年有7个月有31号
代码:
#include<stdio.h>
int main()
{
int x;
char a[6];
scanf("%d of %s",&x,a);
if(a[0]=='w')
{
if(x==5||x==6)
printf("53\n");
else
printf("52\n");
}
else
{
if(x==31)
printf("7\n");
else if(x==30)
printf("11\n");
else
printf("12\n");
}
return 0;
}
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