C1111233131211111211113313331323133313231333133312111113331322131321111   >>    C111123313121111121111331333132313331323133313331211111333132213132111   <<    C1111233131211111211113313331323133313231333133312111113331322131321113   >>      C1111233131211111211113313331323133313231333133312111113331322131321112   >>