##Questions list##
 
q0 = "Poso pires ekthesi proto tetramino?"
q1 = "Poso pires ekthesi deutero tetramino"
q2 = "Poso pires ekthesi panelinies?"
q3 = "Poso pires fisiki proto tetramino?"
q4 = "Poso pires fisiki deutero tetramino?"
q5 = "Poso pires fisiki panelinies?"
q6 = "Poso pires mathimatika kateuthinsis proto tetramino?"
q7 = "Poso pires mathimatika kateuthinsis deutero tetramino?"
q8 = "Poso pires mathimatika kateuthinsis panelinies?"
q9 = "Poso pires efarmoges ipologiston proto tetramino?"
q10 = "Poso pires efarmoges ipologiston deutero tetramino?"
q11 = "Poso pires efarmoges ipologiston panelinies?"
q12 = "Poso pires mathimatika genikis proto tetramino?"
q13 = "Poso pires mathimatika genikis deutero tetramino?"
q14 = "Poso pires maathimatika genikis panelinies?"
q15 = "Poso pires AODE proto tetramino?"
q16 = "Poso pires AODE deutero tetramino?"
q17 = "Poso pires AODE panelinies?"

##Questions List Ending##

questions = [q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11, q12, q13, q14, q15, q16, q17]
answers = [0] * 18

i = 0
while i < 18:
 print questions[i]
 answers[i] = int(raw_input())
 if answers[i] > 20:
  print "Oxi pano apo 20 >: Ksana!"
  continue
 else:
  i = i + 1
 

ekthesi_tetr = ((answers[0] + answers[1])*0.3)/2 + (answers[2]*0.7)
fisiki_tetr = ((answers[3] + answers[4])*0.3)/2 + (answers[5]*0.7)
math_kat_tetr = ((answers[6] + answers[7])*0.3)/2 + (answers[8]*0.7)
prog_tetr = ((answers[9] + answers[10])*0.3)/2 + (answers[11]*0.7)
math_gen_tetr = ((answers[12] + answers[13])*0.3)/2 + (answers[14]*0.7)
aoed_tetr = ((answers[15] + answers[16])*0.3)/2 + (answers[17]*0.7)

maths_var = answers[2]*1.3
fisiki_var = answers[5]*0.7

mesos_oros_tetr = (ekthesi_tetr + fisiki_tetr + math_kat_tetr + prog_tetr + math_gen_tetr + aoed_tetr)/(6)*8

teliko = fisiki_var + maths_var + mesos_oros_tetr
yeha = teliko * 100


print yeha