C1111233131211111211113313331333132313231323223313331323133313321213111   >>    C111123313121111121111331333133313231323132322331333132313331332121311   <<    C1111233131211111211113313331333132313231323223313331323133313321213113   >>      C1111233131211111211113313331333132313231323223313331323133313321213112   >>