import java.io.*;
class Show{
  public static void main (String[] args) throws IOException {
    int flag=0; byte[] z = new byte[20];
    while(0<1) {int a = 20;
      while(0<1) {int r = System.in.read(z, 20-a, a);
        if(r==-1) {flag=1; break;}
        if(r==a) break; a = a-r;}
    if(flag==1) break; // much worse than a goto!!
    for(int y=0; y<20; ++y) System.out.print(" "+z[y]);}
    }}