##Problem Statement (Word is Key)
##One programming language has the 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
##
##
##Case 1
##Input – defer
##Expected Output – defer is a keyword
##Case 2
##Input – While
##Expected Output – while is not a keyword


keyword = {"break", "case", "continue", "default", "defer", "else", "for", "func", "goto", "if", "map", "range", "return", "struct", "type", "var"}
input_var = input()
if input_var in keyword:
    print(input_var + " is a keyword")
else:
    print(input_var + " is not a keyboard")
