C11111211113313112113313331311211331333133313331333133312111111331323223311   >>    C1111121111331311211331333131121133133313331333133313331211111133132322331   <<    C11111211113313112113313331311211331333133313331333133312111111331323223313   >>      C11111211113313112113313331311211331333133313331333133312111111331323223312   >>