A, B, C = map(int, input().split())
D, E, F = map(int, input().split())
if sorted([A,B,C])==sorted([D,E,F]):
  print('Yes')
  if (A,B,C) != (D,E,F):
    print(2)
  else:
    print(1, 'C')
    print(1, 'C')
else:
  print('No')