Your task today is to write a function that returns a vector of integer numbers, between, and including, $1$ and m$,$ of which the sum is equal to s$.$ Therefore, the length of the vector is determined by m and s$.$

For example, to create a sequence of characters $\text{'}$A$\text{'}-\text{'}$Z$\text{'},$ with 'character$-$sum' $($A$=1,$ B$=2,$ Z$=26)$ of $25420,$ use

char$($random$\_$sequence$(26,25420)+\text{'}$A$\text{'}-1)$