C11111211113313112113313331333132313331322121111133313331322312121   >>    C1111121111331311211331333133313231333132212111113331333132231212   <<    C11111211113313112113313331333132313331322121111133313331322312123   >>      C11111211113313112113313331333132313331322121111133313331322312122   >>