program tr1angl3;
var  a,b,c,d,e,f,g,h,i,j,u,v,x,y,z:integer;
begin
      Write('Entrez x:');
      Read (x);
      Write('Entrez y:');
      read (y);
      Write('Entrez z:');
      read (z);
      Write('Entrez u:');
      read (u);
      Write('Entrez v:');
      read (v);
   c := ((x-y-z)div 2);
   a := ((y+x-z)div 2);
   b := ((z+x-y)div 2);
   h := ((y-u+i)div 2);
   i := ((c-h-j)div 2);
   j := ((z-i-v)div 2);
   d := (h+u);
   e := h+i;
   f := i+j;
   g := j+v;
    writeLN('                             ',x);
    writeLN('                           ',a,'   ',b);
    writeLN('                        ',y, '   ',c ,'    ',z);
    writeLN('                     ',d, '    ',e , '    ',f , '     ',g);
    writeLN('                  ',u ,'     ',h ,'     ',i ,'     ',j, '      ', v);

   writeLN('                                                     by_m3hd1');
End.