idx = 0
FIFO is empty.
idx = 1
FIFO contains:
  1: 2
idx = 2
FIFO contains:
  1: 2
idx = 3
FIFO contains:
  1: 3
idx = 4
FIFO contains:
  1: 3
idx = 5
FIFO contains:
  1: 3
  2: 5
idx = 6
FIFO contains:
  1: 3
  2: 5
idx = 7
FIFO contains:
  1: 5
  2: 7
idx = 8
FIFO contains:
  1: 5
  2: 7
idx = 9
FIFO contains:
  1: 5
  2: 7
  3: 11
idx = 10
FIFO contains:
  1: 5
  2: 7
  3: 11
idx = 11
FIFO contains:
  1: 7
  2: 11
  3: 13
idx = 12
FIFO contains:
  1: 7
  2: 11
  3: 13
idx = 13
FIFO contains:
  1: 7
  2: 11
  3: 13
  4: 17
idx = 14
FIFO contains:
  1: 7
  2: 11
  3: 13
  4: 17
idx = 15
FIFO contains:
  1: 11
  2: 13
  3: 17
idx = 16
FIFO contains:
  1: 11
  2: 13
  3: 17
idx = 17
FIFO contains:
  1: 11
  2: 13
  3: 17
  4: 23
idx = 18
FIFO contains:
  1: 11
  2: 13
  3: 17
  4: 23
idx = 19
FIFO contains:
  1: 13
  2: 17
  3: 23
idx = 20
FIFO contains:
  1: 13
  2: 17
  3: 23
idx = 21
FIFO contains:
  1: 13
  2: 17
  3: 23
  4: 31
idx = 22
FIFO contains:
  1: 13
  2: 17
  3: 23
  4: 31
idx = 23
FIFO contains:
  1: 17
  2: 23
  3: 31
idx = 24
FIFO contains:
  1: 17
  2: 23
  3: 31
idx = 25
FIFO contains:
  1: 17
  2: 23
  3: 31
  4: 41
idx = 26
FIFO contains:
  1: 17
  2: 23
  3: 31
  4: 41
idx = 27
FIFO contains:
  1: 23
  2: 31
  3: 41
idx = 28
FIFO contains:
  1: 23
  2: 31
  3: 41
idx = 29
FIFO contains:
  1: 23
  2: 31
  3: 41
  4: 47
idx = 30
FIFO contains:
  1: 23
  2: 31
  3: 41
  4: 47
idx = 31
FIFO contains:
  1: 31
  2: 41
  3: 47
idx = 0
FIFO contains:
  1: 31
  2: 41
  3: 47
idx = 1
FIFO contains:
  1: 31
  2: 41
  3: 47
  4: 2
idx = 2
FIFO contains:
  1: 31
  2: 41
  3: 47
  4: 2
idx = 3
FIFO contains:
  1: 41
  2: 47
  3: 2
idx = 4
FIFO contains:
  1: 41
  2: 47
  3: 2
idx = 5
FIFO contains:
  1: 41
  2: 47
  3: 2
  4: 5
idx = 6
FIFO contains:
  1: 41
  2: 47
  3: 2
  4: 5
idx = 7
FIFO contains:
  1: 47
  2: 2
  3: 5
idx = 8
FIFO contains:
  1: 47
  2: 2
  3: 5
idx = 9
FIFO contains:
  1: 47
  2: 2
  3: 5
  4: 11
idx = 10
FIFO contains:
  1: 47
  2: 2
  3: 5
  4: 11
idx = 11
FIFO contains:
  1: 2
  2: 5
  3: 11
idx = 12
FIFO contains:
  1: 2
  2: 5
  3: 11
idx = 13
FIFO contains:
  1: 2
  2: 5
  3: 11
  4: 17
idx = 14
FIFO contains:
  1: 2
  2: 5
  3: 11
  4: 17
idx = 15
FIFO contains:
  1: 5
  2: 11
  3: 17
idx = 16
FIFO contains:
  1: 5
  2: 11
  3: 17
idx = 17
FIFO contains:
  1: 5
  2: 11
  3: 17
  4: 23
idx = 18
FIFO contains:
  1: 5
  2: 11
  3: 17
  4: 23
idx = 19
FIFO contains:
  1: 11
  2: 17
  3: 23
idx = 20
FIFO contains:
  1: 11
  2: 17
  3: 23
idx = 21
FIFO contains:
  1: 11
  2: 17
  3: 23
  4: 31
idx = 22
FIFO contains:
  1: 11
  2: 17
  3: 23
  4: 31
idx = 23
FIFO contains:
  1: 17
  2: 23
  3: 31
idx = 24
FIFO contains:
  1: 17
  2: 23
  3: 31
idx = 25
FIFO contains:
  1: 17
  2: 23
  3: 31
  4: 41
idx = 26
FIFO contains:
  1: 17
  2: 23
  3: 31
  4: 41
idx = 27
FIFO contains:
  1: 23
  2: 31
  3: 41
idx = 28
FIFO contains:
  1: 23
  2: 31
  3: 41
idx = 29
FIFO contains:
  1: 23
  2: 31
  3: 41
  4: 47
idx = 30
FIFO contains:
  1: 23
  2: 31
  3: 41
  4: 47
idx = 31
FIFO contains:
  1: 31
  2: 41
  3: 47
idx = 0
FIFO contains:
  1: 31
  2: 41
  3: 47
idx = 1
FIFO contains:
  1: 31
  2: 41
  3: 47
  4: 2
idx = 2
FIFO contains:
  1: 31
  2: 41
  3: 47
  4: 2
idx = 3
FIFO contains:
  1: 41
  2: 47
  3: 2
idx = 4
FIFO contains:
  1: 41
  2: 47
  3: 2
idx = 5
FIFO contains:
  1: 41
  2: 47
  3: 2
  4: 5
idx = 6
FIFO contains:
  1: 41
  2: 47
  3: 2
  4: 5
idx = 7
FIFO contains:
  1: 47
  2: 2
  3: 5
idx = 8
FIFO contains:
  1: 47
  2: 2
  3: 5
idx = 9
FIFO contains:
  1: 47
  2: 2
  3: 5
  4: 11
idx = 10
FIFO contains:
  1: 47
  2: 2
  3: 5
  4: 11
idx = 11
FIFO contains:
  1: 2
  2: 5
  3: 11
idx = 12
FIFO contains:
  1: 2
  2: 5
  3: 11
idx = 13
FIFO contains:
  1: 2
  2: 5
  3: 11
  4: 17
idx = 14
FIFO contains:
  1: 2
  2: 5
  3: 11
  4: 17
idx = 15
FIFO contains:
  1: 5
  2: 11
  3: 17
idx = 16
FIFO contains:
  1: 5
  2: 11
  3: 17
idx = 17
FIFO contains:
  1: 5
  2: 11
  3: 17
  4: 23
idx = 18
FIFO contains:
  1: 5
  2: 11
  3: 17
  4: 23
idx = 19
FIFO contains:
  1: 11
  2: 17
  3: 23
idx = 20
FIFO contains:
  1: 11
  2: 17
  3: 23
idx = 21
FIFO contains:
  1: 11
  2: 17
  3: 23
  4: 31
idx = 22
FIFO contains:
  1: 11
  2: 17
  3: 23
  4: 31
idx = 23
FIFO contains:
  1: 17
  2: 23
  3: 31
idx = 24
FIFO contains:
  1: 17
  2: 23
  3: 31
idx = 25
FIFO contains:
  1: 17
  2: 23
  3: 31
  4: 41
idx = 26
FIFO contains:
  1: 17
  2: 23
  3: 31
  4: 41
idx = 27
FIFO contains:
  1: 23
  2: 31
  3: 41
idx = 28
FIFO contains:
  1: 23
  2: 31
  3: 41
idx = 29
FIFO contains:
  1: 23
  2: 31
  3: 41
  4: 47
idx = 30
FIFO contains:
  1: 23
  2: 31
  3: 41
  4: 47
idx = 31
FIFO contains:
  1: 31
  2: 41
  3: 47
idx = 0
FIFO contains:
  1: 31
  2: 41
  3: 47
idx = 1
FIFO contains:
  1: 31
  2: 41
  3: 47
  4: 2
idx = 2
FIFO contains:
  1: 31
  2: 41
  3: 47
  4: 2
idx = 3
FIFO contains:
  1: 41
  2: 47
  3: 2