N, X, Y = map(int, input().split())
dp = [[0]*(Y+1) for _ in range(X+1)]

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

print(dp[X][Y])