#include <iostream>
#include <vector>
#include <list>
 
template<typename T>
class MyVectorCollection
{
    using collection = std::vector<T>;
};
 
template<typename C, typename T>
class MyGenericCollection
{
    using collection = C;
};
 
template<template<typename, typename> class C, typename T>
class MyMoreGenericCollection
{
    using collection = C<T, std::allocator<T>>;
};
 
int main() {
    // your code goes here
    MyVectorCollection<int> a;
    MyGenericCollection<std::list<int>, int> b;
    MyMoreGenericCollection<std::list, int> c;
    return 0;
}

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