Aoi is working on her math homework. The homework consists of $A$ problems in total, and Aoi can solve each $1$ problem in $B$ seconds.

Find how many seconds it takes for Aoi to solve all the problems.

Constraints

• $1 \le A \le 100$.
• $1 \le B \le 100$.
• All input values are integers.

Input

The input is given in the following format:

A
B

Output

Output the time it takes for Aoi to solve all the problems, omitting the unit (seconds).

Do not output anything other than the answer. (Do not output prompt sentences or anything similar.)

Examples

Input 1

5
9

Output 1

45

Note 1

The homework consists of $5$ problems in total, and Aoi can solve each $1$ problem in $9$ seconds. In this case, Aoi can solve all the problems in $45$ seconds.

Input 2

1
25

Output 2

25

Note 2

The homework consists of $1$ problem in total, and Aoi can solve each $1$ problem in $25$ seconds. In this case, Aoi can solve all the problems in $25$ seconds.

Input 3

100
100

Output 3

10000

Note 3

The homework consists of $100$ problems in total, and Aoi can solve each $1$ problem in $100$ seconds. In this case, Aoi can solve all the problems in $10000$ seconds.