[重点] 1627/X/1649/X千位排除50,百位排除58,十位排除05,个位排除50.二定范围: 162749/X/X/163489.两数组合:1X1X,1X6X,6X1X,6X6X,1XX4,1XX9,6XX4,6XX9,XX64
三数组合:1X69,6X14,6X64,6X19,6X69,6X41,6X46,6X91,6X96.范围直码: 千位162749,百位491630,十位164927,个位164938.