import java.util.*; import java.math.*; public class Main { public static void main (String[] args) { Scanner in = new Scanner(System.in); BigDecimal sum = BigDecimal.ZERO; for(int i =0;i<12;i++) { BigDecimal bd =in.nextBigDecimal(); sum=sum.add(bd); } sum=sum.divide(new BigDecimal("12")); System.out.println(sum.stripTrailingZeros().toPlainString()); } } |
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