View Compilation Error

0_0_23304628_21271.cpp: In function 'int main()':
0_0_23304628_21271.cpp:8:5: error: expected initializer before 'while'
     while(scanf("%d %d %d %d",x1,y1,x2,y2)!=EOF)
     ^
0_0_23304628_21271.cpp:14:1: error: expected '}' at end of input
 }
 ^