# Three heroes

Very easy

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

Three heroes went from Brazil to Kievan Rus. They walked at a speed of n meters per minute and must travel a distance of r kilometers. How many days will it take them to overcome the path?

## Input

Two positive integers n and r (n, r ≤ `10^4`

).

## Output

Print the number of days for which the heroes will make their hard journey.

## Examples

Input #1

Answer #1

Input #2

Answer #2

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Acceptance rate 32%