program ural;
var n,l,i,p,q:integer;
    x,y:array[1..2]of integer;
    a,b:integer;
    c,u:array[1..10000]of boolean;
begin
  readln(n,l);
  if n=1 then
    begin
      writeln('YES');
      writeln('+');
      halt;
    end;
  l:=l*l;
  readln(x[1],y[1]);
  readln(x[2],y[2]);
  c[1]:=true;
  c[2]:=true;
  for i:=3 to n do
    begin
      readln(a,b);
      p:=x[1]+a;
      q:=y[1]+b;
      if sqr(p)+sqr(q)<=l then
        begin
          x[1]:=p;
          y[1]:=q;
          u[i]:=true;
          c[i]:=true;
          continue;
        end;
      p:=x[1]-a;
      q:=y[1]-b;
      if sqr(p)+sqr(q)<=l then
        begin
          x[1]:=p;
          y[1]:=q;
          u[i]:=true;
          continue;
        end;
      p:=x[2]+a;
      q:=y[2]+b;
      if sqr(p)+sqr(q)<=l then
        begin
          x[2]:=p;
          y[2]:=q;
          c[i]:=true;
          continue;
        end;
      p:=x[2]-a;
      q:=y[2]-b;
      if sqr(p)+sqr(q)<=l then
        begin
          x[2]:=p;
          y[2]:=q;
          continue;
        end;
    end;
  if sqr(x[1]+x[2])+sqr(y[1]+y[2])>2*l then
    c[2]:=not c[2];
  writeln('YES');
  write('+');
  if c[2] then
    write('+')
  else
    write('-');
  for i:=3 to n do
    begin
      if u[i] then
        begin
          if c[i] then
            write('+')
          else
            write('-');
        end
      else
        begin
          if c[i]=false then
            c[i]:=not c[2];
          if c[i] then
            write('+')
          else
            write('-');
        end;
    end;
end.

try this test
3 10
10 0
0 10
5 5