num = str(input()) time = 0 for i in num: if i == 'A' or i == 'B' or i == 'C': time += 3 elif i == 'D' or i == 'E' or i == 'F': time += 4 elif i == 'G' or i =='H' or i == 'I': time += 5 elif i == 'J' or i == 'K' or i == 'L': time += 6 elif i == 'M' or i == 'N' or i == 'O': time += 7 elif i == 'P' or i == 'Q' or i == 'R' or i == 'S': time += 8 elif i == 'T' or i == 'U' or i == 'V': time += 9 elif..