import sys, os
from collections import defaultdict as dd
from itertools import permutations as PERM

N:set[str] = set()
D:dict[tuple[str,str],int] = dd(int)

for l in sys.stdin.readlines():
    [a,s,b] = l[:-1].split(" ")
    D[(a,b)] += int(s)
    D[(b,a)] += int(s)
    N.add(a)
    N.add(b)

if len(sys.argv)>1 and sys.argv[1]=="2":
    # add you
    for a in N:
        D[(a,'Y')] = 0
        D[('Y',a)] = 0
    N.add('Y')

def score(chain:list[str]) -> int:
    return sum(D[(a,b)] for (a,b) in zip(chain, chain[1:])) \
       + D[(chain[0],chain[-1])]

print(max(score(p) for p in PERM(N)))