var a,b,c: integer;

begin

readln (a,b,c);

if ((a > b) and (a < c)) or ((a < b) and (a > c)) or ((a<b) and (b=c)) or ((a<b) and (a=c)) or ((a<c) and (a=b)) then writeln(a)

else if ((b > a) and (b < c)) or ((b < a) and (b > c)) then writeln(b)

else writeln(c);

end.