
grade_one={'Sami':[19,18,19.5,30,10],'Ahmad':[15,14,16,21,7],'Faris':[18,19,17,26,9],'Salem':[20,20,19,30,10],'Mohmoud':[12,13,11,18,7]}
grade_two={'Lana':[17,19,20,28,9],'Dina':[18.5,19.5,20,29,10],'Maha':[20,20,18,26,9],'Abeer':[16,18,19.5,25,8]}
grade_three={'Rima':[18,19,18,26,9],'Tala':[20,20,19,29,10],'Lamar':[19,20,18,26,9],'Rola':[15,14,16,19,7],'Naya':[9,6,11,14,7],'Dalal':[1,5,2,6,7],'Ola':[19.5,20,20,29.5,10]}

while 'More':
    qst=input("Choose one: students_names, student_score, students_count:")
     if qst=="students_names":
         name=input('Enter grade: ')
         print(student_name(name))
         input('More or Done')

print("Choose one: students_names, student_score, students_count")
grade= input('Enter grade: ')
def students_names(grade):
    return list(grade_...keys())

if grade =="grade_one":
    for i in students_names(grade_one):
        if name == i:
          print(students_names(grade_one,i))
elif grade =="grade_two":
    for i in students_name(grade_two):
        if name == i:
          print(students_names(grade_two,i))
elif grade =="grade_three":
    for i in students_name(grade_three):
        if name == i:
          print(students_names(grade_three,i))
       return list(grade_...keys())

grade,name =input('Enter grade: '), input('Enter name: ')
def student_score(grade,name):
    m= sum(grade.get(name))
    return m
    if i ==students_names(grade_one):
     for name in grade:
   i=0
   while i<len(list(grade.keys()))
     if name== grade[i]
  return grade.git(name)
         i=i+1

grade=  input('Enter grade: ')
def students_count(grade):
    a =len(list(grade.kays()))
    return a
if grade =="grade_one":
    print(students_names(grade_one))
elif grade =="grade_two":
    print(students_names(grade_two))
elif grade =="grade_three":
    print(students_names(grade_three))
return list(grade_...keys())
