import sys
input = sys.stdin.readline
N,M,K = map(int,input().split())
PQC = [tuple(map(int,input().split())) for i in range(M)]
es = [[] for _ in range(300)]
for p,q,c in PQC:
    p,q = p-1,q-1
    es[p].append((q,c))

MOD = 10**9+7
dp = [[[0]*(K+1) for _ in range(300)] for _ in range(N)]
for i in range(300):
    dp[0][i][0] = 1

st = set([(i,0) for i in range(300)])
for i in range(N-1):
    st2 = set()
    for p,c in st:
        for np,dc in es[p]:
            if c+dc > K: continue
            dp[i+1][np][c+dc] += dp[i][p][c]
            dp[i+1][np][c+dc] %= MOD
            st2.add((np,c+dc))
    st = st2
print(sum(a[-1] for a in dp[-1]) % MOD)