How to add two text rows to one and keep other rows same as before pandas

How to add two text rows to one and keep other rows same as before pandas How to do that by pandas?

original dataframe:

   textA  TextB
0       a        zz
1       bbb        zzzzz
2       ccc        zzz

desired output is:

   textA  TextB
0       a bbb       zz
1       bbb        zzzzz
2       ccc        zzz

i mean i just add two row text to specific row and other rows keep original values

Answer

Do you mean by something like:

>>> df.loc[0, 'textA'] += ' ' + df.loc[1, 'textA']
>>> df
   textA  TextB
0  a bbb     zz
1    bbb  zzzzz
2    ccc    zzz
>>>