zZZZZz

VDD VDD GND 5
VA A GND PULSE (5 0 0 1n 1n 800n 1600n)
VB B GND PULSE (5 0 0 1n 1n 400n 800n)
VC C GND PULSE (5 0 0 1n 1n 200n 400n)
VD D GND PULSE (5 0 0 1n 1n 100n 200n)
.tran/op 1n 1600n method=bdf
.print tran v(OUT) v(A) v(B) v(C) v(D)