1 <= 1 ----> 1 1 <= 2 ----> 2 1 <= 0 ----> none -1 <= 0 ----> 0 1 <= -2 ----> none -1 <= -0 ----> 0 1. <= 1 ----> 1.0 1 <= 2. ----> 2.0 1. <= 0. ----> none -1 <= 0. ----> 0.0 1. <= -2 ----> none -1 <= -0. ----> 0.0 Run-time error 102 at line 21 in std69.icn numeric expected offending value: "a"