a={"Python":99,"Java":90,"Oracle":82,"Django":99}
print(a)
a['Oracle']=92
print(a)
a[90]='Java OOPS'
print(a)
b={100:'Hyd',123.123:'Vns',True:'Azm',3+6j:'Chennai'}
print(b)
c={10:1000,20:12.123,30:True,40:3+6j}
print(c)
d={(1,2,3):"Flash","Hyd":[5,6,7]}
print(d)
