A10554. Exponential notation
编程题
普及/提高-
知识点
题目描述
You are given a positive decimal number $x$ .
Your task is to convert it to the "simple exponential notation".
Let $x=a·10^{b}$ , where $1<=a<10$ , then in general case the "simple exponential notation" looks like "aEb". If $b$ equals to zero, the part "Eb" should be skipped. If $a$ is an integer, it should be written without decimal point. Also there should not be extra zeroes in $a$ and $b$ .
Your task is to convert it to the "simple exponential notation".
Let $x=a·10^{b}$ , where $1<=a<10$ , then in general case the "simple exponential notation" looks like "aEb". If $b$ equals to zero, the part "Eb" should be skipped. If $a$ is an integer, it should be written without decimal point. Also there should not be extra zeroes in $a$ and $b$ .
输入格式
The only line contains the positive decimal number $x$ . The length of the line will not exceed $10^{6}$ . Note that you are given too large number, so you can't use standard built-in data types "float", "double" and other.
输出格式
Print the only line — the "simple exponential notation" of the given number $x$ .
输入输出样例
输入 #1
16
输出 #1
1.6E1
输入 #2
01.23400
输出 #2
1.234
输入 #3
.100
输出 #3
1E-1
输入 #4
100.
输出 #4
1E2