C11111211113313112113313331333132313331322121111133313331333133313332322131   >>    C1111121111331311211331333133313231333132212111113331333133313331333232213   <<    C11111211113313112113313331333132313331322121111133313331333133313332322133   >>      C11111211113313112113313331333132313331322121111133313331333133313332322132   >>