wwhat's wrong with my map in my vimrc file?

nnoremap <C-A-h> <C-w>h
vnoremap <C-A-h> <C-w>h
nnoremap <C-A-l> <C-w>l
vnoremap <C-A-l> <C-w>l



<C-w>h used to move to the left window,


but the key map dosent work , when I press ctrl + alt + h at the same time

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