View Compilation Error

0_0_26966780_30192\Main.java:4: 错误: 需要<标识符>
public class  {
            ^
0_0_26966780_30192\Main.java:11: 错误: 非法字符: '\uff0c'
        	BigInteger a,b,c，n，m;
        	                ^
0_0_26966780_30192\Main.java:11: 错误: 非法字符: '\uff0c'
        	BigInteger a,b,c，n，m;
        	                  ^
0_0_26966780_30192\Main.java:11: 错误: 不是语句
        	BigInteger a,b,c，n，m;
        	                 ^
0_0_26966780_30192\Main.java:11: 错误: 不是语句
        	BigInteger a,b,c，n，m;
        	                   ^
0_0_26966780_30192\Main.java:26: 错误: 非法的表达式开始
BigInteger a=BigInteger.valueOf(a.multiply(n)); 
                                               ^
0_0_26966780_30192\Main.java:26: 错误: 非法字符: '#'
BigInteger a=BigInteger.valueOf(a.multiply(n)); 
                                                ^
0_0_26966780_30192\Main.java:26: 错误: 不是语句
BigInteger a=BigInteger.valueOf(a.multiply(n)); 
                                                 ^
0_0_26966780_30192\Main.java:32: 错误: 非法的表达式开始
            	BigInteger b=BigInteger.valueOf(b.multiply(m)); 
            	                                               ^
0_0_26966780_30192\Main.java:32: 错误: 非法字符: '#'
            	BigInteger b=BigInteger.valueOf(b.multiply(m)); 
            	                                                ^
0_0_26966780_30192\Main.java:32: 错误: 不是语句
            	BigInteger b=BigInteger.valueOf(b.multiply(m)); 
            	                                                 ^
11 个错误