#{}
x=5
#{(x,5)}
print (x)
#{(x,5)}
x=6
#{(x,6)}
print (x)
y=7
#{(x,6),(y,7)}
print(y)
#{(x,6),(y,7)}

d={"x":5 ; "y":7}
print(d["x"])
d["x"]=6
print(d["x"])
d[5] = "hello"
d[True] = "there"

s={1,2,3,True,"Biggie"}
