Time Limit: 1000 MS Memory Limit: 65536 K

## Description

e is the most beautiful number in the universe!
！！YUMEN
The natural logarithm, formerly known as the hyperbolic logarithm,
is the logarithm to the base e, where e is an irrational constant
approximately equal to 2.718281828459. In simple terms, the natural
logarithm of a number x is the power to which e would have to be
raised to equal x.
！！Wikipedia
e^{Πi} = -1
！！a famous complex formula
Your task is to calculate e, precise to 100 digits after the decimal point.
## Input

There is no input.
## Output

A single line contains the value of e (2.718281828´),
truncated ( not rounded!) to 100 digits after the decimal point.
## Sample Input

## Sample Output

## Source

YUMEN