C11111211113313112113313331333133313331333132313331333221323221   >>    C1111121111331311211331333133313331333133313231333133322132322   <<    C11111211113313112113313331333133313331333132313331333221323223   >>      C11111211113313112113313331333133313331333132313331333221323222   >>