Four Basic Operations

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given integers $a,b$ with $b>0$, compute their sum, difference, product and real quotient in that order. The quotient is printed as a Python float, e.g. 4.0. In this training extension, the divisor is a power of two so exact token checking is deterministic.

Input

One line containing integers $a,b$ separated by whitespace.

Output

Print four lines: $a+b$, $a-b$, $a\times b$, and $a/b$ using Python default floating-point output.

Subtask

• Subtask 1 — 100 points: $-10^6\le a\le10^6$; $b\in{1,2,4,8}.

Example

Input

7 4

Output

11
3
28
1.75

Explanation

With $a=7$ and $b=4$, the sum is $7+4=11$, the difference is $7-4=3$, the product is $7\times4=28$, and the real quotient is $7/4=1.75$. Each result is printed on a separate line.