C11111211113313112113313331333131211113313221333132313331322131122311   >>    C1111121111331311211331333133313121111331322133313231333132213112231   <<    C11111211113313112113313331333131211113313221333132313331322131122313   >>      C11111211113313112113313331333131211113313221333132313331322131122312   >>