$\text{Algorithm}2$

$\text{Input}:q,L_1,L_2$

$\text{Output}:\xi$

$\xi \leftarrow \varphi$

$\text{for}i=1\text{to}n\text{do}$

$l=\text{selected}\text{different}\text{elements}\text{in}{L}_1\text{and}{L}_2$

$l_1^i,\cdots ,l_{\left[q_1\left|l\right|\right]}^i\leftarrow \text{randomly}\text{selected}\left[q_1\left|l\right|\right]\text{elements}\text{from}\text{l}$

$\left[l_1^i,\cdots ,l_{\left[q_1\left|l\right|\right]}^i\right]=-\left[l_1^i,\cdots ,l_{\left[q_1\left|l\right|\right]}^i\right]$

$L_2^i\leftarrow \text{return}\left[l_1^i,\cdots ,l_{\left[q_1\left|l\right|\right]}^i\right]\text{to}{L}_2$

$\xi \leftarrow \xi \cup L_2^i$

$\text{end}\text{for}$