import java.io.*;
import java.lang.*;
class Test
{
  public static void main (String arge[]) throws IOException
  {
  InputStreamReader values = new InputStreamReader (System.in);
  BufferedReader br = new BufferedReader (values);
  String value,store;
  char ch;
  System.out.print ("Input String: ");
  value = br.readLine();
  store = "";
  int ln = value.length();
  for (int i=0; i<ln; i++)
  {
    ch=value.charAt(i);
    switch (ch)
    {
      case ' ':
      break;
      default:
      if (Character.isUpperCase(ch))
      ch = Character.toLowerCase(ch);
      store+=ch;
    }
  }
  System.out.println(store);
  }
}