president = {
    'name' : 'Ian Jacobs',
    'age' : 54,
    'staff' : [ 'Sally', 'Bob', 'Rob', 'Hayden' ]
}

## TODO: Write code below this line
president['staff'].remove('Hayden')
president['staff'].sort()
president['marks'] = {
    '19T1' : 77,
    '19T2' : 88,
    '19T3' : 99
}
## TODO: Write code above this line
print(president)