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#include "substdio.h"
#include "subfd.h"
#include "exit.h"
void main()
{
register int n;
register char *x;
char ch;
for (;;) {
n = substdio_feed(subfdin);
if (n < 0) _exit(111);
if (!n) _exit(0);
x = substdio_PEEK(subfdin);
substdio_SEEK(subfdin,n);
while (n > 0) {
ch = *x++; --n;
if (ch == '\n') substdio_BPUTC(subfdout,"\r"[0]);
substdio_BPUTC(subfdout,ch);
}
}
}
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