C212212121213232233131313231323223313232233132222331323222313231323321   >>    C21221212121323223313131323132322331323223313222233132322231323132332   <<    C212212121213232233131313231323223313232233132222331323222313231323323   >>      C212212121213232233131313231323223313232233132222331323222313231323322   >>