{8,7,6}{9,7,6}{7,8,6}{9,8,6}{7,9,6}{8,9,6}{7,0,6}{8,0,6}{9,0,6}
{8,6,7}{9,6,7}{6,8,7}{9,8,7}{6,9,7}{8,9,7}{6,10,7}{8,0,7}{9,0,7}
{7,6,8}{9,6,8}{6,7,8}{9,7,8}{6,9,8}{7,9,8}{6,0,8}{7,0,8}{9,0,8}
{7,6,9}{8,6,9}{6,7,9}{8,7,9}{6,8,9}{7,8,9}{6,0,9}{7,0,9}{8,0,9}
{7,6,0}{8,6,0}{9,6,0}{6,7,0}{8,7,0}{9,7,0}{6,8,0}{7,8,0}{9,8,0}{6,9,0}{7,9,0}{8,9,0}
总的有48个,其中偶数有30个,