Donat un text, dir si utilitza totes les lletres de l'alfabet.

Alfabet:

abcdefghijklmnopqrstuvwxyz

Input Format

Un text en una sola línia.

Constraints

\(-\)

Output Format

\(true\) \(|\) \(false\)

Sample Input 0

the quick brown fox jumps over the lazy dog

Sample Output 0

true

Sample Input 1

grumpy wizards make toxic brew for the evil queen and jack

Sample Output 1

true

Sample Input 2

jackdaws love my big sphinx of quartz

Sample Output 2

true

Autoria: Gerard Falcó