D331311121133132313331333132333132313331323331323223311233133313231332211   >>    D33131112113313231333133313233313231333132333132322331123313331323133221   <<    D331311121133132313331333132333132313331323331323223311233133313231332213   >>      D331311121133132313331333132333132313331323331323223311233133313231332212   >>