first[0]="a"
first[1]="d"
first[2]="g"
second[0]="b"
second[1]="e"
second[2]="h"
third[0]="c"
third[1]="f"
third[2]="i"
val_0[0]="1"
val_1[0]="2"
val_0[1]="3"
val_1[1]="4"
val_0[2]="5"
val_1[2]="6"
val_2[2]="7"
val_3[2]="8"