C11111211113313112113313331333133313331333132313331333133313331322331311313321   >>    C1111121111331311211331333133313331333133313231333133313331333132233131131332   <<    C11111211113313112113313331333133313331333132313331333133313331322331311313323   >>      C11111211113313112113313331333133313331333132313331333133313331322331311313322   >>