C and D-1C and D-2C and D-3C and D-4C and D-5C and D-6C and D-7C and D-8C and D-9C and D-10C and D-11C and D-12C and D-13C and D-14C and D-15C and D-16C and D-17C and D-18C and D-19C and D-20