View Compilation Error

0_0_29279681_10853.cpp: In function 'int main()':
0_0_29279681_10853.cpp:55:25: error: 'x' was not declared in this scope
       {   scanf("%d%d",&x,&y); 
                         ^
0_0_29279681_10853.cpp:55:28: error: 'y' was not declared in this scope
       {   scanf("%d%d",&x,&y); 
                            ^