var calculator = new Array();
calculator[0] = { "a":86, "b":89 };
calculator[1] = { "a":5, "b":-5 };
calculator[2] = { "a":10, "b":0 };
calculator[3] = { "a":0, "b":-5 };
calculator[4] = { "a":5, "b":0 };
calculator[5] = { "a":0, "b":-5 };
calculator[6] = { "a":-15, "b":0 };