C1111233131211111211113313231333133313331323221211111333131122313331322121   >>    C111123313121111121111331323133313331333132322121111133313112231333132212   <<    C1111233131211111211113313231333133313331323221211111333131122313331322123   >>      C1111233131211111211113313231333133313331323221211111333131122313331322122   >>