View Compilation Error

0_0_32310758_4692.cpp:138:9: error: missing terminating " character
         freopen("p3987_next.in%2
         ^
0_0_32310758_4692.cpp: In function 'int main()':
0_0_32310758_4692.cpp:138:16: error: expected primary-expression at end of input
         freopen("p3987_next.in%2
                ^
0_0_32310758_4692.cpp:138:16: error: expected '}' at end of input
0_0_32310758_4692.cpp:138:16: error: expected '}' at end of input