f = open('Challenge1_output.txt','w')
f.write("HELLO!")
f.write(" type aaa to end entry of team members' names")
print(" type aaa to end entry of team members' names")

keepgoing = 'y'

while (keepgoing == 'y'):
	teammembername = input("State Team Member's Name and Student number in the form Name-StudentNumber:    ")
	f.write(teammembername + "\n")
	print(' you entered ', teammembername )

	if (teammembername == 'aaa'):
		keepgoing = 'n'

f.close()




C:\Users\Student14>challenge1.py
 type aaa to end entry of team members' names
State Team Member's Name and Student number in the form Name-StudentNumber:    Lovepreet singh
 you entered  Lovepreet singh
State Team Member's Name and Student number in the form Name-StudentNumber:
 you entered
State Team Member's Name and Student number in the form Name-StudentNumber:    aaa
 you entered  aaa

C:\Users\Student14>challenge1.py
 type aaa to end entry of team members' names
State Team Member's Name and Student number in the form Name-StudentNumber:    Lovepreet singh 201704135
 you entered  Lovepreet singh 201704135
State Team Member's Name and Student number in the form Name-StudentNumber:    Navdeep kaur    201704646
 you entered  Navdeep kaur    201704646
State Team Member's Name and Student number in the form Name-StudentNumber:    jashanpreet kaur 201704633
 you entered  jashanpreet kaur 201704633
State Team Member's Name and Student number in the form Name-StudentNumber:    aaa
 you entered  aaa