#创建成绩字典
language_dic = {"Python":None,"Java":None,"C":None}
list_grade = input().split()
#为字典中关键字语言赋值成绩
for key,grade in zip(language_dic,list_grade):
    language_dic[key] = grade
#选语言的判断逻辑
if(language_dic["Python"] > language_dic["Java"] and language_dic["Python"] > language_dic["C"]):
    print("Python")
elif(language_dic["Java"] > language_dic["Python"] and language_dic["Java"] > language_dic["C"]):
    print("Java")
else:
    print("C")