Capital City Ring Road#4822

Capital City Ring Road

1 second
128 megabytes
Medium
prb4822

The length of the Capital City Ring Road is kilometers. The motorcyclist Vasya starts from the zero kilometer of the Capital City Ring Road and travels at a constant speed kilometers per hour. At what kilometer of the Capital City Ring Road will he stop in hours?

Input

The speed and time are given in separate lines. If v > 0, Vasya is moving in the positive direction along the road; if v < 0, he is moving in the negative direction.

Output

Print the kilometer number (integer value from to ) where Vasya will stop.

Examples

Example 1

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Example 2

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