What is output?

$m{y}_l$ist $=[20,25,$ 'hello'$]$

$ne{w}_l$ist $=m{y}_l$ist$[$:$]$

print$(ne{w}_l$ist $[0$:$2])$

print$(m{y}_l$ist$[-1])$

$[20,25]$

hello

$[20,25]$

$[]$

$[20,25,$ 'hello'$]$

hello

$[20,25,$ 'hello'$]$

$[]$