401916: GYM100574 C Valentine's Wedding

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 .

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)

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

B10+3E

13

B4+6E

10