A company held a literature and art show. There were four groups of programs. Xiao Wang, Xiao Zhang, Xiao Zhao and Xiao Li drew lots to decide the performance sequence. Xiao Li at the front desk asked them who came first and who came later. Xiao Wang said, I'm the first to go on stage. Xiao Zhang said, I'm the third. Xiao Zhao said, I'm the fourth. Xiao Li said, anyway, I'm not the last.
No matter who told a lie, the performance sequence of the four people can be inferred if only one of the four of them lied.