C11111211113313112113313331333133313331333132212111133112132321   >>    C1111121111331311211331333133313331333133313221211113311213232   <<    C11111211113313112113313331333133313331333132212111133112132323   >>      C11111211113313112113313331333133313331333132212111133112132322   >>