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using System;
public class C {
    public void M() {
        int n = int.Parse(Console.ReadLine());
        int a = int.Parse(Console.ReadLine());
        int b = int.Parse(Console.ReadLine());
        int numbers = 0;
 
        for (int i=1; i<=b; i++)
        {
           int m = i;
 
           for (int k=2; k<=n; k++)
           {
             m *= m;
           }
           if (m>=a&&m<=b)
           {
              numbers+=1;
           }
 
        }
        Console.WriteLine(numbers);
    }
}

Main.java:1: error: class, interface, or enum expected
using System;
^
Main.java:4: error: class expected
        int n = int.Parse(Console.ReadLine());
                    ^
Main.java:4: error: ';' expected
        int n = int.Parse(Console.ReadLine());
                         ^
Main.java:4: error: ';' expected
        int n = int.Parse(Console.ReadLine());
                                            ^
Main.java:5: error: class expected
        int a = int.Parse(Console.ReadLine());
                    ^
Main.java:5: error: ';' expected
        int a = int.Parse(Console.ReadLine());
                         ^
Main.java:5: error: ';' expected
        int a = int.Parse(Console.ReadLine());
                                            ^
Main.java:6: error: class expected
        int b = int.Parse(Console.ReadLine());
                    ^
Main.java:6: error: ';' expected
        int b = int.Parse(Console.ReadLine());
                         ^
Main.java:6: error: ';' expected
        int b = int.Parse(Console.ReadLine());
                                            ^
10 errors

Standard output is empty