Show that any positive integer is of the form 3 m or (3m + 1)or 3m +2) for some integer m

Show that any positive integer is of the form 3 m or (3m + 1)or 3m +2)

1.	Show that any positive integer is of the form 3 m or (3m + 1)or 3m +2) for some integer m
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