View Compilation Error

0_0_18056967_10748.cpp: In function 'int main()':
0_0_18056967_10748.cpp:93:23: error: 'l' was not declared in this scope
    scanf("%d%d%d",&o,&l,&r);
                       ^
0_0_18056967_10748.cpp:93:26: error: 'r' was not declared in this scope
    scanf("%d%d%d",&o,&l,&r);
                          ^