View Compilation Error

0_0_17536265_24124.cpp: In function 'int main()':
0_0_17536265_24124.cpp:8:5: error: expected ';' before 'if'
   2 if(r<0) break;
     ^
0_0_17536265_24124.cpp:9:4: error: 'else' without a previous 'if'
    else
    ^