Competitions

# PP2. Week 1: March 1 - 7

# First or last?

Three digit number is given. What digit is bigger: the first digit or the last digit?

#### Input

One three digit number.

#### Output

Print the bigger digit between first and last. In case of equality, print "**=**" (without quotes).

Input example #1

328

Output example #1

8

Input example #2

832

Output example #2

8