list1 = [4,2,5,3,9,11, 100]
list2 = [7,9,2,3,5,1]
def difference(list1,list2):
return (list(set(list1) - set(list2)))
print(difference(list1,list2))
bGlzdDEgPSBbNCwyLDUsMyw5LDExLCAxMDBdCmxpc3QyID0gWzcsOSwyLDMsNSwxXQoKZGVmIGRpZmZlcmVuY2UobGlzdDEsbGlzdDIpOgogICAgcmV0dXJuIChsaXN0KHNldChsaXN0MSkgLSBzZXQobGlzdDIpKSkKCnByaW50KGRpZmZlcmVuY2UobGlzdDEsbGlzdDIpKQ==