f = open("27-B.txt")
s = f.readlines()
n = int(s[0])
sumAns = 0
sum2 = 0
sum3 = 0
minDif = 20001
for i in range(1, n + 1):
x, y, z = map(int, s .split())
if (x >= y) and (x >= z):
sumAns = sumAns + x
if y >= z:
sum2 = sum2 + y
sum3 = sum3 + z
else:
sum3 = sum3 + y
sum2 = sum2 + z
if ((abs(x - y)) % 2 != 0) and (abs(x - y) < minDif): minDif = abs(x - y)
elif ((abs(x - z)) % 2 != 0) and (abs(x - z) < minDif): minDif = abs(x - z)
elif (y >= z) and (y >= x):
sumAns = sumAns + y
if x >= z:
sum2 = sum2 + x
sum3 = sum3 + z
else:
sum3 = sum3 + x
sum2 = sum2 + z
if ((abs(y - x)) % 2 != 0) and (abs(y - x) < minDif): minDif = abs(y - x)
elif ((abs(y - z)) % 2 != 0) and (abs(y - z) < minDif): minDif = abs(y - z)
elif (z >= x) and (z >= y):
sumAns = sumAns + z
if x >= y:
sum2 = sum2 + x
sum3 = sum3 + y
else:
sum3 = sum3 + x
sum2 = sum2 + y
if ((abs(z - x)) % 2 != 0) and (abs(z - x) < minDif):
minDif = abs(z - x)
elif ((abs(z - y)) % 2 != 0) and (abs(z - y) < minDif):
minDif = abs(z - y)
if (sum2 + sum3) % 2 != 0: print(sumAns)
else: print(sumAns - minDif)