C111113331333132322331333133313331333132313123313231333132233132332211   >>    C11111333133313232233133313331333133313231312331323133313223313233221   <<    C111113331333132322331333133313331333132313123313231333132233132332213   >>      C111113331333132322331333133313331333132313123313231333132233132332212   >>