题解 | #明明的随机数#

import sys
while True:
    try:
        L=[]
        N=int(input())
        for i in range(N):
            if i==N:
                break
            else:
                x = int(input())
                if x in range(0,501):
                    L.append(x)
                else:
                    continue
        L1=list(set(L))
        L2=sorted(L1)
        for i in L2:
            print(i)
    except:
        break