C11111211113313112113313331333131211113313221333132313331322131   >>    C1111121111331311211331333133313121111331322133313231333132213   <<    C11111211113313112113313331333131211113313221333132313331322133   >>      C11111211113313112113313331333131211113313221333132313331322132   >>