import sys
input = sys.stdin.readline
M = 5005
def f(X):
    inf = 10 ** 18
    pre = [-inf] * M
    pre[0] = 0
    for w, v in X:
        dp = [-inf] * M
        for j in range(M):
            dp[j] = pre[j]
            if j - w >= 0:
                dp[j] = max(dp[j], pre[j - w] + v)
        dp, pre = pre, dp
    return pre
        

N, W, D = map(int, input().split())
X =[[], []]
for i in range(N):
    t, w, v = map(int, input().split())
    X[t].append((w, v))
    
d0 = f(X[0])
d1 = f(X[1])
ans = 0
for i in range(W + 1):
    for j in range(max(0, i - D), min(W - i + 1, i + D + 1)):
        ans = max(ans, d0[i] + d1[j])

print(ans)