406407: GYM102397 A Bashar and SHAWERMA!
Memory Limit：256 MB
Time Limit：1 S
Judge Style：Text Compare
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Description
A. Bashar and SHAWERMA!time limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard output
Bashar Loves SHAWERMA sandwiches very much, so he decided to buy some sandwiches.
The price of one sandwich is 2 JDs and Bashar wants to eat $$$x$$$ sandwiches.
how many JDs Bashar needs to buy the $$$x$$$ sandwiches?
InputThe input contains a single integer $$$x$$$ $$$(1 \leq x \leq 30 )$$$ .
OutputPrint the number of JDs Bashar needs to buy the $$$x$$$ sandwiches.
ExampleInput17Output
34