0(1) element: null
1(2) element: PyMatchStatement
2(3) WRITE ACCESS: x
3(4) element: PyBinaryExpression
4(5,6) READ ACCESS: x
5(16) element: null. Condition: x % 4 == 0:false
6(7) element: null. Condition: x % 4 == 0:true
7(8) element: PyBinaryExpression
8(9,10) READ ACCESS: x
9(11) element: null. Condition: x % 400 == 0:false
10(14) element: null. Condition: x % 400 == 0:true
11(12,13) READ ACCESS: x
12(16) element: null. Condition: x % 100 != 0:false
13(14) element: null. Condition: x % 100 != 0:true
14(15) element: PyExpressionStatement
15(16) READ ACCESS: y
16(17) element: PyExpressionStatement
17(18) READ ACCESS: z
18() element: null