0_0_38497995_2675.cpp: In function 'int main()': 0_0_38497995_2675.cpp:10:18: error: 'a' was not declared in this scope while(cin >> a >> b) ^ 0_0_38497995_2675.cpp:10:24: error: 'b' was not declared in this scope while(cin >> a >> b) ^