print(len(s["accounts"]))
z=set()
try:
    for i in s["accounts"]:
        for i0 in i["interests"]:
            z.add(i0)
except:
    pass
print(len(z))
print(z)
z=set()
try:
    for i in s["accounts"]:
        z.add(len(i["likes"]))
except:
    pass
print(max(z))
print(min(z))
print(z)
z=set()
try:
    for i in s["accounts"]:
        z.add(i["fname"])
except:
    pass
print(len(z))
print(z)
z=set()
try:
    for i in s["accounts"]:
        z.add(i["sname"])
except:
    pass
print(len(z))
print(z)
z=set()
try:
    for i in s["accounts"]:
        z.add(i["country"])
except:
    pass
print(len(z))
print(z)
z=set()
try:
    for i in s["accounts"]:
        z.add(i["city"])
except:
    pass
print(len(z))
print(z)
input()