Flowing Words

If a sentence flows, the first letter of each word will be the same to the last letter of the previous word.

Task

Write a program that takes in a string that contains a sentence, checks if the first letter of each word is the same as the last letter of the previous word. If the condition is met, output true, if not, output false. Casing does not matter.

Input Format

A string containing a sentence of words.

Output Format

A string: true or false.

Sample Input

this string gets stuck

Sample Output

true

Explanation

Each word begins with the letter that the previous word ends with, therefore the output is true.

Solutions

Language	Solution
C	not available
CPP	not available
C#	not available
Python	available
Java	not available
Ruby	not available
Swift	not available