#!/bin/usr/env python
import random
#a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
#b = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13]

a=[random.randrange(0,50,1) for i in range(0,51,1)]
b=[random.randrange(0,50,1) for i in range(0,51,1)]

#Converting a List into a Set, to remove duplicates
seta=set(a)
setb=set(b)
c=seta.intersection(setb)
print(c)