A programming language has following keywords that cannot be used as identifiers:
break, case, continue, default, defer, else, for, func, goto, if, map, range, return, struct, type, var
Write a program to find if the given word is a keyword or not.
Constraints
1 < = length of string < = 20
Input Format :
A string will be given at first line.
Output Format : Print output as given string is keyword or not.
Test Case 1
Input :
case
Output :
case is a keyword
Explanation 1
case is a keyword which is used in switch. Hence output will be case is a keyword.
Test Case 2
Input :
num
Output :
num is not a keyword
Explanation 2
num is not a keyword its simple a string which can be used as variable name and many more.Hence output will be num is not a keyword.