C11111211113313112113313331333132313331322132333133313113313331323232321   >>    C1111121111331311211331333133313231333132213233313331311331333132323232   <<    C11111211113313112113313331333132313331322132333133313113313331323232323   >>      C11111211113313112113313331333132313331322132333133313113313331323232322   >>