View Compilation Error

0_0_26725231_13532.cpp: In function 'int main()':
0_0_26725231_13532.cpp:10:31: error: expected ';' before ')' token
               for(a=1,a<=n,a++)      
                               ^
0_0_26725231_13532.cpp:16:10: error: expected primary-expression before '}' token
          }
          ^
0_0_26725231_13532.cpp:16:10: error: expected ')' before '}' token
0_0_26725231_13532.cpp:16:10: error: expected primary-expression before '}' token