uses crt;
var
a:array[1..100]of integer;
i,n,s:integer;
begin
s:=0;
writeln('skoka chisel?');
readln(n);
if n>100 then n:=100;
randomize;
for i:=1 to n do begin
a[i]:=random(100);
write(a[i]:3);
if (a[i] mod 2=0) and (i mod 2=0) then s:=s+a[i];
end;
writeln;
writeln(s);
readln;
end.