#PCBSAU0000030. Ký pháp khoa học (Scientific Notation)

Ký pháp khoa học (Scientific Notation)

Scientific Notation

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given a nonzero real xx, print scientific notation with three fractional digits in the mantissa, lowercase e, and a signed exponent.

Input

One line containing real xx.

Output

Print d.ddde±NN, with at least two exponent digits.

Subtask

  • Subtask 1 — 100 points: x≠0x\ne0; x=m×10tx=m\times10^t for signed m∈{1,2,3,4,5,6,7,8,9}m\in\{1,2,3,4,5,6,7,8,9\} and −8≤t≤8-8\le t\le8.

Example

Input

1000

Output

1.000e+03

Explanation

1000 = 1 × 10³; .3e yields mantissa 1.000 and exponent +03.