1 | 2 | 3 ----> 1 |(1 to 10) ----> 1 ||(1 to 10) ----> 1 |||(1 to 10) ----> 1 ||||(1 to 10) ----> 1 |||||(1 to 10) ----> 1 |||||||(1 to 10) ----> 1 2 \ 2 ----> 2 while 1 do break ----> &null while 1 do break "hello" ----> "hello" while break ----> &null case 1 of {2:3; "1":4; 1: 4 to 10; default: "whoa"} ----> 4 not 1 ----> none not \&null ----> &null repeat break ----> &null until 1 do 2 ----> none if 1 then 2 else 3 ----> 2 1 2 3 4 5 6 7 8 9 10 every write(if 1 then 1 to 10 else 5) ----> none 10 9 8 7 6 5 4 3 2 1 every write(if 1 = 0 then 1 to 10 else 10 to 1 by -1) ----> none if 1 then 2 ----> 2 if 1 = 0 then 2 ----> none Run-time error 101 at line 30 in std51.icn integer expected offending value: "a"