NOTIF includes the following operators for use in scripting:

str1 + str2 — Returns the concatenation of str1 and str2.
"abc" + "def" > "abcdef"

number1 + number2 — Returns the sum of the two numbers.
123 + 456 > "579"
Note:The script evaluation of NOTIF is stringbased. NOTIF examines the two operands and, if both are legal numbers, it sums them. Otherwise, the two strings are concatenated. To ensure a concatenation regardless of string content, use the concat() function described.

number1 * number2 — Returns the product of the two numbers.
3 * 4 > "12"