I can't change the position of the letters

For future reference, it's very difficult to troubleshoot code posted as a screenshot. You will almost certainly get more traction on your questions when you provide an accompanying REPRoducible EXample, or reprex:

For this small problem though, I think you just need to add more than 15 to ing:

text(ing + 35)

If you want to shift left/right, pass the x axis points first:

text(1:7 + .2, ing)

For me, I prefer to use ggplot2::geom_text(), which has built-in arguments for doing this sort of thing.

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