C212212121213232233131313231323223313232233132222331323132213231323111   >>    C21221212121323223313131323132322331323223313222233132313221323132311   <<    C212212121213232233131313231323223313232233132222331323132213231323113   >>      C212212121213232233131313231323223313232233132222331323132213231323112   >>