View Compilation Error

0_0_24292179_17853.cpp: In function 'int main()':
0_0_24292179_17853.cpp:10:73: error: 'n' was not declared in this scope
  while(scanf("%d%d%d%d%d%d",&a[1],&a[2],&a[3],&a[4],&a[5],&a[6])!=EOF&&(n[1]!=0||n[2]!=0||n[3]!=0||n[4]!=0||n[5]!=0||n[6]!=0))
                                                                         ^