Problems

# Number of students

# Number of students

There are **a** boys and **b** girls in the class. How many students in the class in total?

#### Input

Two positive integers **a** and **b** (**a**, **b** ≤ `10`

).^{18}

#### Output

Print the number of students in the class.

Input example #1

12 9

Output example #1

21