def knapsack(ss: list):
    dp = [-INF] * (W+1)
    dp[0] = 0
    for w, v in ss:
        for i in reversed(range(W+1)):
            if dp[i] == -INF: continue
            if i+w > W: continue
            dp[i+w] = max(dp[i+w], dp[i] + v)

    return dp


INF = 1 << 60
N, W, D = map(int, input().split())
ss0 = []
ss1 = []
for _ in range(N):
    t, w, v = map(int, input().split())
    if t == 0:
        ss0.append((w, v))
    else:
        ss1.append((w, v))

dp0 = knapsack(ss0)
dp1 = knapsack(ss1)
ans = 0
for i in range(W+1):
    jmax = W-i  # j の最大値
    lo = max(0, i-D)
    hi = min(i+D, jmax)
    for j in range(lo, hi+1):
        if dp0[i] == -INF: continue
        if dp1[j] == -INF: continue
        ans = max(ans, dp0[i] + dp1[j])

print(ans)