import operator
#def main():
#   finalLines = sorted([word.rsplit('-')for word in open("sample.txt").read().split('\n') if len(word.rsplit('-'))==5],key = lambda x: x[1],reverse=False)

def sortByFirst(listOfTuples):
    return sorted(listOfTuples,key = lambda x:x[1])
def checkIfIsIn(listOfTuples , firstName):
    for tuple in listOfTuples:
        if tuple[1] == firstName :
            return True
            break
    return False
operator = {
    "+": lambda a, b: a + b,
    "*": lambda a, b: a * b,
    "/": lambda a, b: a / b,
    "%": lambda a, b: a % b
}
def apply_operator(op,a,b):
    return operator[op](a,b)
specialOperator = {
    "print_all": lambda *a, **k: print(a, k),
    "print_args_commas": lambda *a, **k: print(a, k, sep=", "),
    "print_only_args": lambda *a, **k: print(a),
    "print_only_kwargs": lambda *a, **k: print(k)
}
def unionDictionary(*args):
    result = {}
    for dict in args:
        for elem in dict:
            if elem not in result:
                result[elem]=[dict[elem]]
            else : result[elem].append(dict[elem])
    for key,value in result.items() :
        if len(value) == 1 :
                result[key] = value[0]
    return result
#print(unionDictionary({"george":2,"ana":3},{"ana":2,"george":4,"cristi":4}))





def apply_function(op,*args,**kwargs):
    return specialOperator[op](*args,**kwargs)
#apply_function("print_all","george","todirenau",x="george")

#dict = {'a': 1,'b':{'c': 3,'d':{'e': 5,'f': 6}}}
#printDictionary(dict,"-")
"""
print key
if value = dict
recall
print value
"""