Print K Decimal Places

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given a real $x$ and integer $k$, print $x$ with exactly $k$ fractional digits.

Input

One line containing $x$ and $k$, separated by whitespace.

Output

Print exactly $k$ digits after the decimal point.

Subtask

• Subtask 1 — 100 points: $-1000\le x\le1000$, $x$ is a multiple of $1/8$; $0\le k\le4$.

Example

Input

3.125 3

Output

3.125

Explanation

$k=3$ selects the dynamic .3f format and prints 3.125.