Problems

# The card and envelope

# The card and envelope

Given the dimensions of rectangular cards and envelopes. Required to determine whether to put a postcard in the envelope.

**Input**

In the first row are the size of cards, the second - the size of the envelope. Dimensions cards and envelopes - are positive integers not exceeding**100**.

**Output**

If the card can be embedded in an envelope, print "**Possible**", if no - show "**Impossible**".

Input example #1

1 10 9 9

Output example #1

Possible