N, X, Y = map(int, input().split())
A = [list(map(int, input().split())) for _ in range(N)]

INF = 10**18
dp = [[-INF]*(Y+1) for _ in range(X+1)]
dp[0][0] = 0
for a, b, c in A:
    ndp = [[v for v in d] for d in dp]
    for i in range(X+1):
        for j in range(Y+1):
            if i+a <= X and j+b <= Y:
                ndp[i+a][j+b] = max(ndp[i+a][j+b], dp[i][j]+c)
            dp[i][j] = max(dp[i][j], ndp[i][j])

print(max(max(a) for a in dp))