Only One’s

Samy is very good at math. He is so intelligent that he can multiply
big numbers very fast. One day his friend PJ told him to multiply some numbers and then Samy multiplied all the numbers quite easily.

PJ wrote two integers A and B. The digits of the integers are consisting of only 1’s and A is equal to B (A = B).

Now, it’s your turn to add 1 with each of the digit of Samy's answer.
Hope you can do it. :)

Input

The first line contains two integers A and B. A and B will contain no more than nine digits.

Output

Print the answer in a single line.

Samples

Input	Output
11 11	232

Input	Output
111111111 111111111	234567891098765432

The answers will be no more than 1018.