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0_0_15337380_25227.cpp:2:1: error: expected unqualified-id before numeric constant
 02.using namespace std;     
 ^
0_0_15337380_25227.cpp:3:1: error: expected unqualified-id before numeric constant
 03.int result[24]={0,0,4,6,0,0,12,40,0,0,171,410,0,0,1896,5160,0,0,32757,59984,0,0,431095,822229};   
 ^
0_0_15337380_25227.cpp:4:1: error: expected unqualified-id before numeric constant
 04.int main()   
 ^