C1111133313331323223313331333133313311211111211331333131122112323231   >>    C111113331333132322331333133313331331121111121133133313112211232323   <<    C1111133313331323223313331333133313311211111211331333131122112323233   >>      C1111133313331323223313331333133313311211111211331333131122112323232   >>