Split column by text and numbers

I have a column with housenumbers. Like:

str = ["54","33", "104A",...]

I want to split it in two columns

Numbers = ["54","33", "104",...]

Letters = ["","", "A",...]

[Walter Roberson]

https://www.mathworks.com/help/matlab/ref/extract.html

Answer 1

[Stephen23]

str = ["54","33","104A"];
tkn = regexp(str,'^(\d+)\s*(\w*)$','tokens','once');
tkn = vertcat(tkn{:});
num = tkn(:,1)

num = 3×1 string array
    "54"
    "33"
    "104"

let = tkn(:,2)

let = 3×1 string array
    ""
    ""
    "A"