var k,n,x1,x2,x3,x4,x5,x6:integer; 
begin
	read(n);
 for x1:=0 to 9 do
    begin
      for x2:=0 to 9 do
      begin
        for x3:=0 to 9 do
          begin
         for x4:=0 to 9 do
           begin
              for x5:=0 to 9 do
             begin
                for x6:=0 to 9 do
                 begin
                    if (x1+x2+x3=x4+x5+x6) and (x1+x2+x3=n) then k:=k+1;
                  end;
             end;
           end;
          end;
      end;
    end;
    writeln(k);
end.

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MQ==

1