0_0_2019203_3723.cpp: In function `int A(int)':
0_0_2019203_3723.cpp:27: error: a function-definition is not allowed here before '{' token
0_0_2019203_3723.cpp:27: error: expected `,' or `;' before '{' token
0_0_2019203_3723.cpp:39: error: a function-definition is not allowed here before '{' token
0_0_2019203_3723.cpp:39: error: expected `,' or `;' before '{' token
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