View Compilation Error

1_714_1892_28442.cpp: In function 'int main()':
1_714_1892_28442.cpp:171:34: error: 'a' was not declared in this scope
         for(int i=0; i<2005; i++)a
                                  ^
1_714_1892_28442.cpp:172:26: error: 'j' was not declared in this scope
             for(int j=0; j<2005; j++)
                          ^