import java.util.*;
import java.lang.*;
import java.io.*;
class Main {
public static void main
(String[] args
) { Scanner x
= new Scanner
(System.
in); int n = x.nextInt();
int counter = 0;
if (n >= 1){
while (n != 1) {
counter++;
if (n % 2 == 0) n = n / 2;
else n++;
}
} else System.
out.
print( "Wrong number" ); }
}
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