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program file_24
implicit none
integer :: unit_no
character(len=100) :: line
character(len=100) :: filename
filename = 'file_22_data.txt '
unit_no = 2
open (unit_no, file=filename)
read(unit_no, *) line
print *, "Contents of 'file_22_data.txt': ", line
close(unit_no)
open (unit_no, file="file_22_data.txt ")
read(unit_no, *) line
print *, "Contents of 'file_22_data.txt': ", line
close(unit_no)
print *
open (unit_no, file="file 24 data.txt ")
read(unit_no, *) line
print *, "Contents of 'file 24 data.txt': ", line
close(unit_no)
filename = 'file 24 data.txt '
open (unit_no, file=filename)
read(unit_no, *) line
print *, "Contents of 'file 24 data.txt': ", line
close(unit_no)
end program file_24
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