import Data.List

main = do
 [g,c,p] <- map read . words <$> getLine
 [c',p',g'] <- (\[c',g',p'] -> [c',p',g']) . map (pred . length) . group . sort . ("GCP"++) <$> getLine
 let next = [g-(min g c'), c-(min c p'), p-(min p g')]
 let next' = [g'-(min p g'), c'-(min g c'), p'-(min c p')]
 let win = (sum [g,c,p] - sum next) * 3
 let draw = sum $ zipWith min next next'
 print (win + draw)