Calculate the cost
cA += Math . abs ( S . charAt ( i ) - ' a ' ) ; cE += Math . abs ( S . charAt ( i ) - ' e ' ) ; cI += Math . abs ( S . charAt ( i ) - ' i ' ) ; cO += Math . abs ( S . charAt ( i ) - ' o ' ) ; cU += Math . abs ( S . charAt ( i ) - ' u ' ) ; } }