n,k,l = map(int,input().split()) cnt = 0 ans = [] for _ in range(n): d = [*map(int,input().split())] if d[0] + d[1] + d[2] >= k and d[0] >= l and d[1] >= l and d[2] >= l: cnt += 1 ans.extend(d) print(cnt) print(*ans)