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 i in range(x,a-1,-1):
        for j in range(y,b-1,-1):
            dp[i][j] = max(dp[i][j],dp[i-a][j-b]+c)
ans = 0
for s in dp: ans = max(s)
print(ans)