skip 0  :('1') XXX (123) YY YY (1,22,333) Z Z Z (22,1):
skip 1  :(1) XXX ('123') YY YY (1,22,333) Z Z Z (22,1):
skip 2  :(1) XXX (123) YY YY ('1','22','333') Z Z Z (22,1):
skip 3  :(1) XXX (123) YY YY (1,22,333) Z Z Z ('22','1'):