#include <vector>
#include <iostream>
int main()
{
std::vector<std::vector<int>> LN ={ {1,1,2,2,},
{2,2,1,2,},
{3,5,2,5,},
{1,1,2,3,}};
for(auto& row: LN) {
for(int n: row)
std::cout << n << ' ';
std::cout << '\n';
}
}
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