C1111233131211111211113313331323133313231333133312111113331313223311211321   >>    C111123313121111121111331333132313331323133313331211111333131322331121132   <<    C1111233131211111211113313331323133313231333133312111113331313223311211323   >>      C1111233131211111211113313331323133313231333133312111113331313223311211322   >>