Adding extra line in a Cell

Hi All,

I have some data in Cell A1 and B1, I want that data in combined in one cell but in diffetent lines.. For example if i have 123 in A1 and 456 in B1, I need it to show the result as below in C2

123
456

Thanks in Advance

Format C2, Alignment Tab and tick "Wrap Text", then:

C2: =A1&CHAR(10)&B1