C11111211113313112113313331333131211113313221333132313331311331323221311211   >>    C1111121111331311211331333133313121111331322133313231333131133132322131121   <<    C11111211113313112113313331333131211113313221333132313331311331323221311213   >>      C11111211113313112113313331333131211113313221333132313331311331323221311212   >>