View Compilation Error

0_0_15279528_25126.cpp: In function 'int main()':
0_0_15279528_25126.cpp:22:26: error: 'x' was not declared in this scope
         printf("%d%d\n", x, y);
                          ^
0_0_15279528_25126.cpp:22:29: error: 'y' was not declared in this scope
         printf("%d%d\n", x, y);
                             ^