On a sheet of paper, you have 100 statements written down. the first says, "at most 0 of these 100 statements are true." the second says, "at most 1 of these 100 statements are true." the nth says, "at most (n-1) of these 100 statements are true. the 100th says, "at most 99 of these statements are true." how many of the statements are true?