C1111233131211111211113313231333133313331323221211111333133313223221333211321   >>    C111123313121111121111331323133313331333132322121111133313331322322133321132   <<    C1111233131211111211113313231333133313331323221211111333133313223221333211323   >>      C1111233131211111211113313231333133313331323221211111333133313223221333211322   >>