C. Valentine's Wedding
time limit per test
1 second
memory limit per test
64 megabytes
input
stdin
output
stdout

Pashmak and Parmida are getting married this valentine. Pashmak has invited a guests to the wedding and Parmida has invited b guests. Unfortunately, they are making out and have no time to calculate the number of guests.

Your task is to calculate the number of guests (a + b) with language Cursle.

Your program's order mustn't exceed 107 .

Input

A single string, Ba + bE (B and E are just B and E characters) .

1 ≤ a, b ≤ 101000 (Of course Pashmak and Parmida don't come from earth)

Output

A single integers, c where c = a + b (without characters B and E) .

Examples
Input
B10+3E
Output
13
Input
B4+6E
Output
10