def remove_duplicados(l1, l2):
return [i for i in l1 if i not in l2]
l1 = [1, 2, 3, 4]
l2 = [1, 2, 5, 6]
print(remove_duplicados(l1, l2))
ZGVmIHJlbW92ZV9kdXBsaWNhZG9zKGwxLCBsMik6CiAgcmV0dXJuIFtpIGZvciBpIGluIGwxIGlmIGkgbm90IGluIGwyXQogIApsMSA9IFsxLCAyLCAzLCA0XQpsMiA9IFsxLCAyLCA1LCA2XQoKcHJpbnQocmVtb3ZlX2R1cGxpY2Fkb3MobDEsIGwyKSk=