db.kooky.insert_many([{'a':'list'},{'holds':'just'},{'a':'bunch'},
    {'of':'elements'}])
db.kooky.insert_many([{'a':'string','has':'only','letters':'!'}])
db.kooky.insert_many([{'a':'dict'},{'has':'key'},{'value':'pairs'}])
db.weirdos.insert_one(
    { 'outcome':'mishap', 'turkey':'burnt',
      'potatoes':'cold', 'feast':'ruined'})
db.weirdos.insert_one(
    { 'veggies':['green beans','squash','potatoes','cauliflower','peas'],
      'sides':['celery','marshmallow potato casserole'],
      'guests':['lexi from down the hall','billy from work','sandra bff'],
      'pies':['pecan','pumpkin'] })
db.weirdos.insert_many([{'guests':['Creepy Uncle Joe','Deaf Aunt Marie']},
    {'guests':['Stepmom','Stepdad','Stephen','Stepsister'],
     'sides':['cranberries','casserole','olives','little sweet pickles'],
     'leftovers':['casserole','cranberries'],
     'feast':'vegetarian'},
    {'feast':'Thursday','leftovers':['Friday','Saturday','Sunday','Monday']}])
db.weirdos.insert_one(
    { 'outcome':'success', 'cranberries':'tangy', 'potatoes':'creamy'})

hasbeens = list(db.kooky.find({'has':{'$exists':1}}))
hasbeen = db.kooky.find({'has':{'$exists':1},'a':{'$exists':0}}).next()
ays = list(db.kooky.find({'a':{'$exists':1}}))
yummy = db.weirdos.find({'pies':'pumpkin'}).next()
sad = db.weirdos.find({yummy['veggies'][len(hasbeens)]:'cold'}).next()
m1 = sad['outcome'][3:6]
m2 = yummy['veggies'][len(ays)][0:3]
scrumptious = db.weirdos.find({'sides':'casserole'}).next()
m3 = scrumptious['guests'][3][7:10]
m4 = hasbeen['has']
stuffed = db.weirdos.find({'leftovers':{'$size':len(ays)}}).next()
m5 = stuffed['feast'][5:8]

print(f"{m1}{m2} {m3}{m4} {m5}")