import java.util.Arrays;

public class Main {

public static void main(String[] args) {

int[][] scores = {

{ 82, 90, 91 },

{ 68, 72, 64 },

{ 95, 91, 89 },

{ 67, 52, 60 },

{ 79, 81, 85 },

};

int resultScores = 0;

int childrenNum = 0;

for (int[] score : scores) {

int result = 0;

for (int i : score) {

result += i;

childrenNum += 1;

}

resultScores += result;

}

double average = (double) resultScores / childrenNum;

if (Math.abs(average - 77.733333) < 0.000001) {

System.out.println("测试成功");

} else {

System.out.println("测试失败");

}

}

}