D11211112331322331311211331323113313233313331323133313232213233231   >>    D1121111233132233131121133132311331323331333132313331323221323323   <<    D11211112331322331311211331323113313233313331323133313232213233233   >>      D11211112331322331311211331323113313233313331323133313232213233232   >>