program vuraz;

{$APPTYPE CONSOLE}

uses
  SysUtils;
  const op:array[1..3] of char= ('+','-','*');
  var a:array[1..1000] of integer;
  stack:array[1..1000] of integer;
  o:array[1..1000] of integer;

  i,n:integer;
  f1,f2:text;

begin
assign(f1,'input.txt');
reset(f1);
readln(f1,n);
for i:=1 to n do read(f1,a[i]);
close(f1);



assign(f2,'outpu.txt');
rewrite(f2);
i:=1;
stack[i]:=a[1];
while i>0 do begin
if i<n then begin
            if o[i]<3 then begin o[i]:=o[i]+1;
                                 i:=i+1;
                                 if o[i-1]=1 then stack[i]:=stack[i-1]+a[i];
                                 if o[i-1]=2 then stack[i]:=stack[i-1]-a[i];
                                 if o[i-1]=3 then stack[i]:=stack[i-1]*a[i];
                                 end
            else
            begin o[i]:=0;i:=i-1; end;
             end;
//writeln(i,' ',stack[i],'  ',op[o[i-1]]);
//readln;

if i=n then begin for i:=1 to n-1 do
                  write(f2,a[i],op[o[i]]);
                  writeln(f2,a[n],'=',stack[n]);



                  i:=i-1;
            end;
end;



close(f2);


end.