Program Zero_sum;
Type MangStr = array[1..15] of string;
Const Fi =’ZERO.INP’;
Fo =’ZERO.OUT’;
Dau : array[1..3] of string[1] = (’-’,’+’,’’);
S : array[1..9] of char =(’1’,’2’,’3’,’4’,’5’,’6’,’7’,’8’,’9’);
ChuSo = [’1’..’9’];

Var N,k,dem: byte;
D : array[2..9] of string[1];
F : Text;
St : String;
M : MangStr;

Procedure Write_out;
Var i : byte;
Begin
Assign(F,Fo); Rewrite(F);
Writeln(F,dem);
For i:= 1 to dem do writeln(F,M[i],’ = 0’);
Close(F); Halt;
End;

Procedure Read_inp;
Begin
Assign(F,Fi); Reset(F);
Read(F,N); Close(F);
If N < 3 then write_out;
End;

Function DocSo(S : String): longint;
Var M : longint;
t : byte;
Begin
M:= 0; t:= 0;
If S[k] in [’+’,’-’] then
begin
t:= k; Inc(k);
end;
While (k<= length(S)) and (s[k] in ChuSo) do
begin
m:= m*10 + ord(s[k]) - ord(’0’);
Inc(k);
end;
If (t <> 0) and (S[t] = ’-’) then DocSo:= -M
else DocSo:= M;
End;

Procedure Test;
Var St : string;
i : byte;
T : longint;
Begin
St:= ’1’; k:= 1; T:= 0;
For i:= 2 to N do St:= St + D[i] + S[i];
While k < length(St) + 1 do T:= T + DocSo(St);
If T = 0 then
begin
Inc(dem); M[dem]:= St;
end;
End;

Procedure Try(i: byte);
Var j : byte;
Begin
For j:= 1 to 3 do
begin
D[i]:= Dau[j];
If i = N then Test else try(i+1);
end;
End;

BEGIN
Read_inp;
Try(2);
Write_out;
END.