Given 3 series merge to create a new series with 1 column containing numbers of each dataframe

I have 3 series with data like below

s1 = [1,1,3]
s2 = [2,3,2]
s3 = [4,2,1]

I want to create a new series with values such that

s_new = [124,132,321]

please note that s_new = int(''.join(s1,s2,s3))
I know the above syntax is wrong but you get the idea.

>Solution :

You can do with pandas agg

s = pd.DataFrame([s1,s2,s3]).astype(str).agg(''.join).astype(int).tolist()
Out[334]: [124, 132, 321]