# a=int(input("enter the number"))
# s={}
# for i in range(1,a+1):
#     s[i]=a=i*i
# print(s)



# d1={"a":100,"b":200,"c":300}
# d2={"a":300,"b":200,"d":400}
# d3=dict(d1)
# d3.update(d2)
# for i,j in d1.items():
#     for x,y in d2.items():
#         if i==x:
#             d3[i]=(j+y)
# print(d3) 





    
        

