### A + B problem

Time Limit: 1000 ms Memory Limit: 65536 KiB

#### Problem Description

Given two integers a and b(0 a, b <100), your task is to calculate the result of a+b. Please note that the two integers a and b is described by English words, see the sample input and sample output for details.

#### Input

There are several test cases(less than 100).

For each test case:

Only one line contains one string with the format of “a + b =”.

Input ends with a==0 and b==0.

#### Output

For each test case, output the result in one line.

#### Sample Input

one + one =
three four + five six =
zero + zero =

#### Sample Output

2
90

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