uses crt;
const fi='max.out'
var f1:text;
a,b,c,max:integer;
begin
clrscr;
assign(f1,fi); rewrite(f1);
write('a='); readln(a);
write('b='); readln(b);
write('c='); readln(c);
max:=a;
if max<b then max:=b;
if max<c then max:=c;
writeln(f1,max);
close(f1);
readln;
end.