0(1) element: null
1(2) element: PyWhileStatement
2(3,4) READ ACCESS: True
3() element: null. Condition: True:false
4(5) element: null. Condition: True:true
5(6) element: PyStatementList
6(1) element: PyPassStatement
7(8) element: PyStatementList
8(9) element: PyPrintStatement
9() element: null