Program BTT;
Uses crt;
Var a,b,t: longint;
Begin
Clrscr;
Write('Nhap a: '); Readln(a);
Write('Nhap b: '); Readln(b);
If (a mod 2 = 0) and (b mod 2 = 0) then Write('Tong la: ',a+b);
If (a mod 2 = 1) and (b mod 2 = 1) then Write('Tich la: ',a*b);
Readln
End.