Problem Statement

In Japan, there are four major categories of ice cream type products:

• an ice cream type product with at least $15$ percent milk solids and at least $8$ percent milk fat is called an ice cream;
• an ice cream type product with at least $10$ percent milk solids and at least $3$ percent milk fat that is not an ice cream is called an ice milk;
• an ice cream type product with at least $3$ percent milk solids that is not an ice cream or an ice milk is called a lacto ice;
• an ice cream type product that is not an ice cream, an ice milk, or a lacto ice is called a flavored ice.

Here, milk solids consist of milk fat and milk solids-not-fat. AtCoder's famous product Snuke Ice contains $A$ percent milk solids-not-fat and $B$ percent milk fat. Which of the categories above does Snuke Ice fall into? Print your answer as an integer according to the Output section.

Constraints

• $0 \le A \le 100$
• $0 \le B \le 100$
• $A + B \le 100$
• $A$ and $B$ are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

Print an integer as follows:

• if Snuke Ice is an ice cream, print $1$;
• if Snuke Ice is an ice milk, print $2$;
• if Snuke Ice is a lacto ice, print $3$;
• if Snuke Ice is a flavored ice, print $4$.