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\PY{k}{\PYZbs{}newcommand}\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}argmin}\PY{n+nb}{\PYZcb{}}\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}operatorname}\PY{k}{*}\PY{n+nb}{\PYZob{}}arg\PY{k}{\PYZbs{},}min\PY{n+nb}{\PYZcb{}}\PY{n+nb}{\PYZcb{}}
\PY{k}{\PYZbs{}newcommand}\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}argmax}\PY{n+nb}{\PYZcb{}}\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}operatorname}\PY{k}{*}\PY{n+nb}{\PYZob{}}arg\PY{k}{\PYZbs{},}max\PY{n+nb}{\PYZcb{}}\PY{n+nb}{\PYZcb{}}
\PY{k}{\PYZbs{}newcommand}\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}norm}\PY{n+nb}{\PYZcb{}}[1]\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}lVert} \PY{n+nb}{\PYZob{}}\PYZsh{}1\PY{n+nb}{\PYZcb{}}\PY{k}{\PYZbs{}rVert}\PY{n+nb}{\PYZcb{}}
\PY{k}{\PYZbs{}newcommand}\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}sprod}\PY{n+nb}{\PYZcb{}}[2]\PY{n+nb}{\PYZob{}}\PY{k}{\PYZbs{}left}\PYZlt{}\PY{n+nb}{\PYZob{}}\PYZsh{}1\PY{n+nb}{\PYZcb{}},\PY{n+nb}{\PYZob{}}\PYZsh{}2\PY{n+nb}{\PYZcb{}}\PY{k}{\PYZbs{}right}\PYZgt{}\PY{n+nb}{\PYZcb{}}
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