View Compilation Error

0_0_21965117_5879.cpp: In function 'int main()':
0_0_21965117_5879.cpp:70:9: error: 'numAStr' was not declared in this scope
    cin>>numAStr>>numBStr;
         ^
0_0_21965117_5879.cpp:70:18: error: 'numBStr' was not declared in this scope
    cin>>numAStr>>numBStr;
                  ^