def common_numbers(l1 l2,l3):
return list(set(l1) & set(l2) & set(l3))
list1 = [1,2,3]
list2 = [7,5,3]
list3 = [5,6,3]
print(common_numbers(list1,list2,list3)
ZGVmIGNvbW1vbl9udW1iZXJzKGwxIGwyLGwzKToKcmV0dXJuIGxpc3Qoc2V0KGwxKSAmIHNldChsMikgJiBzZXQobDMpKQpsaXN0MSA9IFsxLDIsM10KbGlzdDIgPSBbNyw1LDNdCmxpc3QzID0gWzUsNiwzXQpwcmludChjb21tb25fbnVtYmVycyhsaXN0MSxsaXN0MixsaXN0Myk=