View Compilation Error

0_0_23100198_31416.cpp: In function 'int main()':
0_0_23100198_31416.cpp:4:11: error: expected initializer before ':' token
    int a,b:
           ^
0_0_23100198_31416.cpp:9:12: error: expected '}' at end of input
    return 0;
            ^