maxch=0
maxne=0
summ=0
N=int(input())
for i in range(N):
    x=int(input())
    if x%2==0 and x>maxch:
        maxch=x
    if x%2!=0 and x>maxne:
        maxne=x
control=int(input())

if maxne!=0 and maxch!=0:
    summ=maxch+maxne
else:
    summ=-1

print('Vichislennoe kontrolnoe znachenie:', summ)
if summ==control:
    print('Kontrol proyden')
else:
    print('Kontrol ne proyden')