Calculate Total Yen

Bita Taro possesses $A$ bills of 1000 yen and $B$ bills of 10000 yen. The task is to compute the total amount in yen that he has, using the formula: $$Total = 1000 \times A + 10000 \times B$$.

inputFormat

The input consists of a single line containing two integers, A and B, separated by a space.

outputFormat

Output a single integer representing the total amount in yen that Bita Taro has.

sample

1 1

11000