using System;
class MainClass {
public static void Main() {
string[] strs = { "one", "two", "three", "two", "one" };
foreach(string s in strs) {
switch(s) {
case "one":
Console.Write(1);
break;
case "two":
Console.Write(2);
break;
case "three":
Console.Write(3);
break;
}
}
Console.WriteLine();
}
}
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