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Annotation of 43BSD/usr.lib/learn/C/L5.1a, revision 1.1

1.1     ! root        1: #print
        !             2: (Section 1.5)
        !             3: Write a program that copies exactly three characters
        !             4: from its input to its output.
        !             5: When compiled and tested, type ready.
        !             6: #once #create Ref
        !             7: XY
        !             8: #once #create z1
        !             9: XY
        !            10: marks the spot.
        !            11: #user
        !            12: a.out <z1 >z2
        !            13: #cmp z2 Ref
        !            14: #succeed
        !            15: /* Here is one possible solution */
        !            16: 
        !            17: main()
        !            18: {
        !            19:        putchar(getchar());
        !            20:        putchar(getchar());
        !            21:        putchar(getchar());
        !            22: }
        !            23: #log
        !            24: #next
        !            25: 5.1b 10
        !            26: 5.2a 5

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