hp 28s - creating nested lists

[mbrethen]

I need a program that will initialize a nested list filled with a value. For example:

Stack:
0
{3 4}

Output: {{0 0 0 0} {0 0 0 0} {0 0 0 0}}

Stack:
1
{2 3 4}

Output: {{{1 1 1 1} {1 1 1 1} {1 1 1 1}} {{1 1 1 1} {1 1 1 1} {1 1 1 1}}}


Is this possible? I've thought about it, but can't figure out how to accommodate the levels of nesting (i.e. multiple For/Next loops).