Concatenate Two Strings

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given two lines $a$ and $b$, concatenate them in order with exactly one newly inserted space. Preserve all existing spaces, including when a line is empty.

Input

Line 1 contains $a$; line 2 contains $b$.

Output

Print a + " " + b on one line.

Subtask

• Subtask 1 — 100 points: $0\le|a|,|b|\le100$ Unicode characters each.

Example

Input

Xin chào
Python 3

Output

Xin chào Python 3

Explanation

Preserve Xin chào, insert one space, and append Python 3 to produce Xin chào Python 3.