program rectangles;
var A,B,C :integer;
risposta : longint;
begin
readln(A);readln(B);readln(C);
if (A <> B) and (A <> C) and (B <> C) then risposta:=6
else
if (A=B) and (B=C) then risposta:=1
else
risposta:=3;
writeln (risposta);
end.
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