fver,2;plugin,turtle;fconsole,False;ht;pu;nl;
obj,list;assign;[;int,8;sep;int,4;sep;int,6;];nl;
#,Writes "4". Elements are indexed from 0.;nl;
wr;(;obj,list;[;int,1;];sep;obj,move;assign;true;);nl;
go;nl;
nl;
obj,list;.;apnd;int,7;nl;
obj,list;.;ins;(;int,1;sep;int,10;);nl;
nl;
#,Writes "[8\, 10\, 4\, 6\, 7]".;nl;
wr;(;obj,list;sep;obj,move;assign;true;);nl;
go;nl;
#,Writes "0".;nl;
wr;(;index;(;obj,list;sep;int,8;);sep;obj,move;assign;true;);nl;
go;nl;
#,Writes "-1".;nl;
wr;(;index;(;obj,list;sep;int,99;);sep;obj,move;assign;true;);nl;
go;nl;
nl;
del;obj,list;[;int,1;];#,Removes item at index 1 (number 10).;nl;
wr;(;obj,list;sep;obj,move;assign;true;);#,Writes "[8\, 4\, 6\, 7]".;nl;
go;nl;
nl;
obj,list;.;clr;nl;
wr;obj,list;#,Writes "[]".;nl;