B3313221211233132322331321123233313231333132233133313331333132333131312312321   >>    B331322121123313232233132112323331323133313223313331333133313233313131231232   <<    B3313221211233132322331321123233313231333132233133313331333132333131312312323   >>      B3313221211233132322331321123233313231333132233133313331333132333131312312322   >>