C111123313121111121111331323133313331333132322121111133313231333133313331121321   >>    C11112331312111112111133132313331333133313232212111113331323133313331333112132   <<    C111123313121111121111331323133313331333132322121111133313231333133313331121323   >>      C111123313121111121111331323133313331333132322121111133313231333133313331121322   >>