View Compilation Error

0_0_30741181_5570.cpp: In function 'int rec(int, int)':
0_0_30741181_5570.cpp:42:17: error: expected primary-expression at end of input
   an=(rec(i+1,j)%
                 ^
0_0_30741181_5570.cpp:42:17: error: expected ')' at end of input
0_0_30741181_5570.cpp:42:17: error: expected '}' at end of input
0_0_30741181_5570.cpp:42:17: error: expected '}' at end of input