Description

Given two floating-point numbers, determine if they are equal. Here, two floating-point numbers a and b are considered equal if |a-b|<10^(-8).

Input Format

Two floating-point numbers a and b (0≤a,b<9).

Output Format

If they are equal, output "yes"; otherwise, output "no".

Sample

6.7574929582 6.7574929509

yes