noob question re: space delimited input

I am probably overlooking something very simple. I just don't see what
it is.

I have a test input file that called 'input.txt' containing:
1111 2222 3333
1111. 2222. 3333.

and a program:
....
open (unit=1, file='input.txt')
....
do while (length .NE. maxSize)
read (1, *, IOSTAT=ios) a, b, c
if (ios .EQ. -1) exit
length = length + 1
print*, a, b, c
end do



It reads the appropriate amount of entries before iostat returns '-1'
but my output looks like:
16777216 0 0
37810344 0 0

If I change the the type of a, b, and c to real, I get one wacky real
number and two 0's per line.

It is obviously not reading space delimited. I have been fiddling with
it for way too long now. I would appreciate some advice.

Thanks

.