N,X,Y = map(int,input().split())
dp = [[0 for _ in range(Y+1)] for _ in range(X+1)]
for _ in range(N):
    a,b,c = map(int,input().split())
    for j in range(X,a-1,-1):
        for k in range(Y,b-1,-1):
            dp[j][k] = max(dp[j][k],dp[j-a][k-b]+c)
print(dp[X][Y])