Lucky Number

Fractional number, in the form of a finite decimal is called "happy", if the sum of digits of this number before the decimal point equals to the sum of digits after the decimal point. Given a rational number written as a finite decimal. Determine is it happy.

Input

One decimal number x, not exceeding 10^6 by absolute value. The fractional part of the number contains at least one and no more than six digits.

Output

Print Yes, if number x is happy, and No otherwise.

Examples