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A000000, … , A999999
200,000 : “A0* or A1*”
getQuery(200000) returns “A0* or A1*”
2 : “A000000 or A000001”
getQuery(2) returns “A000000 or A000001”
写一个 String getQuery(int n), 返回query的string
200,000 : “A0* or A1*”
getQuery(200000) returns “A0* or A1*”
2 : “A000000 or A000001”
getQuery(2) returns “A000000 or A000001”
写一个 String getQuery(int n), 返回query的string