FIRST[6]  o
FIRST[5]  o
FIRST[4]  o
FIRST[3]  o
FIRST[2]  o
FIRST[1]  o
FIRST[0]  o
SECOND[6]  o
SECOND[5]  o
SECOND[4]  o
SECOND[3]  o
SECOND[2]  o
SECOND[1]  o
SECOND[0]  o
THIRD[6]  o
THIRD[5]  o
THIRD[4]  o
THIRD[3]  o
THIRD[2]  o
THIRD[1]  o
THIRD[0]  o
FOURTH[6]  o
FOURTH[5]  o
FOURTH[4]  o
FOURTH[3]  o
FOURTH[2]  o
FOURTH[1]  o
FOURTH[0]  o
CLOCK  i