students = {
"name":"kareem",
"age":14,
"city":"cairo",
}
print(students)
students["love"]="foot ball"
print(students)
students.pop("city")
print(students)
print(len(students))
c3R1ZGVudHMgPSB7CgkibmFtZSI6ImthcmVlbSIsCgkiYWdlIjoxNCwKCSJjaXR5IjoiY2Fpcm8iLAp9CnByaW50KHN0dWRlbnRzKQpzdHVkZW50c1sibG92ZSJdPSJmb290IGJhbGwiCgpwcmludChzdHVkZW50cykKc3R1ZGVudHMucG9wKCJjaXR5IikKCnByaW50KHN0dWRlbnRzKQoKcHJpbnQobGVuKHN0dWRlbnRzKSk=
{'name': 'kareem', 'age': 14, 'city': 'cairo'}
{'name': 'kareem', 'age': 14, 'city': 'cairo', 'love': 'foot ball'}
{'name': 'kareem', 'age': 14, 'love': 'foot ball'}
3