C11111211113313112113313331333133313331333132313331333223312231   >>    C1111121111331311211331333133313331333133313231333133322331223   <<    C11111211113313112113313331333133313331333132313331333223312233   >>      C11111211113313112113313331333133313331333132313331333223312232   >>