C11111211113313112113313331333132313331322121111113313232233312111   >>    C1111121111331311211331333133313231333132212111111331323223331211   <<    C11111211113313112113313331333132313331322121111113313232233312113   >>      C11111211113313112113313331333132313331322121111113313232233312112   >>