[
{
"input": [],
"key": 50,
"expected": []
},
{
"input": [
65
],
"key": 50,
"expected": [
115
]
},
{
"input": [
104,
101,
108,
108,
111,
32,
119,
111,
114,
108,
100
],
"key": 50,
"expected": [
90,
87,
94,
94,
93,
18,
69,
93,
64,
94,
86
]
},
{
"input": [
104,
101,
108,
108,
111,
32,
119,
111,
114,
108,
100
],
"key": 10,
"expected": [
98,
111,
102,
102,
101,
42,
125,
101,
120,
102,
110
]
},
{
"input": [
123,
34,
116,
34,
58,
34,
80,
88,
49,
50,
52,
53,
55,
34,
44,
34,
100,
34,
58,
123,
125,
125
],
"key": 50,
"expected": [
73,
16,
70,
16,
8,
16,
98,
106,
3,
0,
6,
7,
5,
16,
30,
16,
86,
16,
8,
73,
79,
79
]
},
{
"input": [
0,
1,
2,
3,
4
],
"key": 255,
"expected": [
255,
254,
253,
252,
251
]
}
]