Formula to MERGE CELLS and SEPARATE WORDS with " - "

Hi,

I have this problem:

I need to MERGE the textual (or numeric) content contained in 5 SEPARETED CELLS, INTO 1 CELL,
and to SEPARATE ALL THE WORDS (OR NUMBERS), contained in that cell, WITH "-".

Are you guys aware of a combination of formulas to make it?

I thought of using "merge cells" and then "find space" and "substitute with - ",
but is there something better?

Many thanks

Thank you XOR LX, that formula is perfectly working if the cells have 1 value.

Thank you L-Drr, I am trying to use the SUBSTITUTE formula on the A1 cell, that contains more than 1 word, for example: "Hi my name is"

=SUBSTITUTE(A1;" ";"-";1)

But in this way it puts the "-" just in the first position.

How can I tell Excel to put the "-" among each word?

many thanks

Many thanks for your help