program ideone;
var
n: integer;
n1, n2, S, P: real;
begin
write('n='); read(n);
n1:= n mod 10;
n:= n div 10;
n2:= n mod 10;
n:= n div 10;
S:= 23*10+1;
P:= 2*100+3*10+1;
write(round(P));
end.
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