foo.c: In function 'main':
foo.c:6:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d\n", &n);
  ^~~~~~~~~~~~~~~~~
foo.c:9:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
   ^~~~~~~~~~~~~~~~~~
foo.c:11:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &k);
  ^~~~~~~~~~~~~~~
/tmp/ccsP9EHF.o: In function `main':
foo.c:(.text.startup+0x89): undefined reference to `Moveleft'
collect2: error: ld returned 1 exit status

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