C11111211113313112113313331333132313331322121111113313223323131   >>    C1111121111331311211331333133313231333132212111111331322332313   <<    C11111211113313112113313331333132313331322121111113313223323133   >>      C11111211113313112113313331333132313331322121111113313223323132   >>