/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
static int saveThePrisoner(int n, int m, int s){
if(n - s < m)
m = m - (n - s);
else
return m+s;
return n - n%m;
}
{
System.
out.
println(saveThePrisoner
(5,
1,
20)); }
}
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