{
    "ch-1" : [
        {
            "function" : "incrementdecrement",
            "arguments" : [ "--x", "x++", "x++" ],
            "result" : 1
        },
        {
            "arguments" : [ "x++", "++x", "x++" ],
            "result" : 3
        },
        {
            "arguments" : [ "x++", "++x", "--x", "x--" ],
            "result" : 0
        }
    ],
    "ch-2" : [
        {
            "function" : "taxamount",
            "multiarg" : true,
            "arguments" : [
                10.0,
                [ [3, 50], [7, 10], [12, 25] ]
            ],
            "result" : 2.65
        },
        {
            "multiarg" : true,
            "arguments" : [
                2.0,
                [ [1, 0], [4, 25], [5, 50] ]
            ],
            "result" : 0.25
        },
        {
            "multiarg" : true,
            "arguments" : [
                0.0,
                [ [2, 50] ]
            ],
            "result" : 0.0
        }
    ]
}