N, W, D = map(int, input().split())
A0 = []
A1 = []
for _ in range(N):
    t, w, v = map(int, input().split())
    if t == 0:
        A0.append((w, v))
    else:
        A1.append((w, v))

dp0 = [-1] * (W+1)
dp0[0] = 0
for a in A0:
    for j in range(W, a[0]-1, -1):
        if dp0[j-a[0]] >= 0 and dp0[j] < dp0[j-a[0]]+a[1]:
            dp0[j] = dp0[j-a[0]]+a[1]

dp1 = [-1] * (W+1)
dp1[0] = 0
for a in A1:
    for j in range(W, a[0]-1, -1):
        if dp1[j-a[0]] >= 0 and dp1[j] < dp1[j-a[0]]+a[1]:
            dp1[j] = dp1[j-a[0]]+a[1]

ans = 0
for i in range(W+1):
    for j in range(W+1):
        if abs(i-j) <= D and i+j <= W and dp0[i] >= 0 and dp1[j] >= 0:
            ans = max(ans, dp0[i]+dp1[j])
print(ans)