What will be the output of following code?

import pandas as pd
series1 = pd.Series([11,22,33,44,55])
print (series1)

0    11
1    22
2    33
3    44
4    55
dtype: int64

1    11
2    22
3    33
4    44
5    55
dtype: int64

0    11
1    22
2    33
3    44
4    55
dtype: float32