View Compilation Error

0_0_26065249_18354.cpp: In function 'ull get_phi(ull)':
0_0_26065249_18354.cpp:17:6: error: 'ulli' was not declared in this scope
  for(ulli = 3;i * i <= x;i += 2)
      ^
0_0_26065249_18354.cpp:17:15: error: 'i' was not declared in this scope
  for(ulli = 3;i * i <= x;i += 2)
               ^