df=pd.DataFrame([[1,2,3],[4,5,6]]),columns=['a','b','c'])
df1=pd.DataFrame([[7,8,9],[10,11,12]],columns=['a','b','c'])
consider the above DataFrame and write the python codes to perform the following
1) write the code to add of these two DataFrame and write the output.
2)write the code to subtract the data of these two DataFrame and write the output.
3) write the code to multiply the data of these two DataFrame and write the output.
4)write the code to divide df with df1 and write the output.