65     let arr1 = new Array(2000);  variable
66     arr1[0] = 1;
67     arr1[1] = 1;
69     arr2.__proto__ = arr1;
85     let arr1 = new Array(10);  variable
86     arr1[0] = 1;
87     arr1[1] = 1;
89     arr2.__proto__ = arr1;
105     let arr1 = new Array(2000);  variable
106     arr1[0] = 1;
107     arr1[1] = 1;
109     arr2.__proto__ = arr1;