0_0_18865029_11669.cpp: In function 'int main()':
0_0_18865029_11669.cpp:53:15: error: 'N' was not declared in this scope
FOR(i, 1, N) {
^
0_0_18865029_11669.cpp:2:67: note: in definition of macro 'FOR'
#define FOR(i, l, r) for (int i = int(l), __border_right##i = int(r); i < __border_right##i; i++)
^
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