View Compilation Error

0_0_21376829_3120.cpp:32:17: error: missing terminating " character
                 cout<<"-1<<endl;
                 ^
0_0_21376829_3120.cpp: In function 'int main()':
0_0_21376829_3120.cpp:33:9: error: expected primary-expression before 'else'
         else
         ^