0_0_19141694_25454.cpp: In function 'int main()': 0_0_19141694_25454.cpp:14:19: error: 'a' was not declared in this scope while (cin >> a >> b){ ^ 0_0_19141694_25454.cpp:14:24: error: 'b' was not declared in this scope while (cin >> a >> b){ ^