N,W,D = map(int,input().split(' '))

stones=[]
for i in range(N):
    stone={}
    t,w,v = map(int,input().split(' '))
    stone['t']=t
    stone['w']=w
    stone['v']=v
    stones.append(stone)

max_v = 0
for i in range(pow(2,N)):
    choice = format(i,'0'+str(N)+'b')
    W0=0
    W1=0
    W01=0
    V=0
    flag = True
    for j in range(N):
        if choice[j]=='1':
            if stones[j]['t']==0:
                W0+=stones[j]['w']
            else:
                W1+=stones[j]['w']
            W01+=stones[j]['w']
            V+=stones[j]['v']
    if ((abs(W0-W1)<=D) and (W01 <= W)):
        if max_v < V:
            max_v=V
print(max_v)