C11111211113313112113313331333133313331333132212111113331333112321   >>    C1111121111331311211331333133313331333133313221211111333133311232   <<    C11111211113313112113313331333133313331333132212111113331333112323   >>      C11111211113313112113313331333133313331333132212111113331333112322   >>