2a3,4
>       90001 ps:	a=1 b=0 e=0 f=0 -> sig1=1 sig2=1 -> y=1
>      134001 ps:	a=1 b=0 e=0 f=0 -> sig1=1 sig2=1 -> y=0
6a9,10
>      440001 ps:	a=0 b=1 e=1 f=1 -> sig1=1 sig2=1 -> y=1
>      484001 ps:	a=0 b=1 e=1 f=1 -> sig1=1 sig2=1 -> y=0
8a13,14
>      560001 ps:	a=1 b=0 e=1 f=1 -> sig1=1 sig2=1 -> y=1
>      604001 ps:	a=1 b=0 e=1 f=1 -> sig1=1 sig2=1 -> y=0
10a17,18
>      640001 ps:	a=0 b=1 e=1 f=1 -> sig1=1 sig2=1 -> y=1
>      684001 ps:	a=0 b=1 e=1 f=1 -> sig1=1 sig2=1 -> y=0
