program bt;
uses crt;
var i,n: integer;
a,b: array [1..100] of integer;
begin
clrscr;
write('Nhap so hoc sinh trong lop: '); readln(n);
writeln('Nhap diem toan cua cac hoc sinh: ');
for i:=1 to n do begin writeln(i,'.'); readln(a[i]); end;
writeln('Nhap diem van cua cac hoc sinh: ');
for i:=1 to n do begin writeln(i,'.'); readln(b[i]); end;
writeln('Diem trung binh cua cac hoc sinh: ');
for i:=1 to n do begin writeln(i,'.',(a[i] + b[i])/2:3:1); end;
readln
end.