pascal problem

[kalo150]

it gives me an error and the code is:

var a,b,c:integer;
begin
write('a=');readln(a);
write('b=');readln(b);
write('c=');readln(c);
if a>b then
begin
if a>c then
writeln('a=',a)
else
writeln('c=',c);
end;
else
begin
if b>c then
writeln('b=',b)
else
writeln('c=',c);
end;
readln;
end.

[pritaeas]

The end before the else is not allowed to have a semi-colon. Next time post your error message too.