The number of students in a music class is increasing month after month as follows. Find the number of students in June from the following information.
January = 5 February = 5 + 12 = 6 March = 6 + 22 = 10 April = 10 + 32 = 19 May = 19 + 42 = 35 June = 35 + 52 = 60
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