View Compilation Error

0_0_3227031_18021\Main.java:9: 非法字符： \8211
for(int i = 3; i <= 1000; i++) a[i] = a[i - 2].add(BigInteger.valueOf(2).pow(i – 3)); Scanner in = new Scanner (System.in); while(in.hasNext()) System.out.println(a[in.nextInt()]); } } 
                                                                               ^
0_0_3227031_18021\Main.java:9: 需要 ';'
for(int i = 3; i <= 1000; i++) a[i] = a[i - 2].add(BigInteger.valueOf(2).pow(i – 3)); Scanner in = new Scanner (System.in); while(in.hasNext()) System.out.println(a[in.nextInt()]); } } 
                                                                                ^
0_0_3227031_18021\Main.java:9: 非法的表达式开始
for(int i = 3; i <= 1000; i++) a[i] = a[i - 2].add(BigInteger.valueOf(2).pow(i – 3)); Scanner in = new Scanner (System.in); while(in.hasNext()) System.out.println(a[in.nextInt()]); } } 
                                                                                  ^
0_0_3227031_18021\Main.java:9: 需要 ';'
for(int i = 3; i <= 1000; i++) a[i] = a[i - 2].add(BigInteger.valueOf(2).pow(i – 3)); Scanner in = new Scanner (System.in); while(in.hasNext()) System.out.println(a[in.nextInt()]); } } 
                                                                                   ^
4 错误