使用直接判断进行查找,但是可能不满足要求

inNum=int(input())
inTime=int(input())
outList=[]
for i in range(inNum):
    inOrder=input().split()
    if inTime>=int(inOrder[1]) and inTime<=int(inOrder[2]):
        outList.append(inOrder[0])
if outList:
    for i in sorted(outList):
        print(i)
else:
    print("null")