C11111211113313112113313331333132313331322121111133313331322331333112121   >>    C1111121111331311211331333133313231333132212111113331333132233133311212   <<    C11111211113313112113313331333132313331322121111133313331322331333112123   >>      C11111211113313112113313331333132313331322121111133313331322331333112122   >>