tup= ()

while True :

      roll = int(input("Enter a roll number : "))

      name = input("Enter name :")

      mark = input("Enter marks :")

      tup += ( (roll,name,mark ),)

      flag = input("Do you want add another record (if yes the pres Y ) :")

      if flag not in ['y','Y']:

            break

print(tup)

​