"""
[25600: Triathlon](https://www.acmicpc.net/problem/25600)
Tier: Bronze 4
Category: 구현
"""
def solution():
ans = 0
for i in range(int(input())):
a, d, g = map(int, input().split())
s = a * (d + g)
if a == d + g:
s = s * 2
ans = max(ans, s)
return ans
if __name__ == '__main__':
print(solution())