# https://yukicoder.me/problems/no/2741


def calc_dp(W, wv):
    dp = [-1] * (W + 1)
    dp[0] = 0
    for w, v in wv:
        new_dp = dp.copy()

        for w0 in range(W + 1):
            if dp[w0] == -1:
                continue

            if w + w0 <= W:
                new_v = dp[w0] + v
                new_dp[w + w0] = max(new_dp[w + w0], new_v)
        dp = new_dp
    
    return dp



def main():
    N, W, D = map(int, input().split())
    t0_wv = []
    t1_wv = []
    for _ in range(N):
        t, w, v = map(int, input().split())
        if t == 0:
            t0_wv.append((w, v))
        else:
            t1_wv.append((w, v))

    dp0 = calc_dp(W, t0_wv)
    dp1 = calc_dp(W,t1_wv)

    answer = 0
    for w0 in range(W + 1):
        if dp0[w0] == -1:
            continue

        v0 = dp0[w0] 
        for w1 in range(W + 1):
            if w0 + w1 > W:
                break
            if abs(w0 - w1) <= D:
                v1 = dp1[w1]
                if v1 == -1:
                    continue

                ans = v0 + v1
                answer = max(ans, answer)
    print(answer)



        

if __name__ == "__main__":
    main()