./Main.java:22: error: array required, but ArrayList<String> found
						tem+="2("+cun[index]+")";
						             ^
./Main.java:25: error: array required, but ArrayList<String> found
						tem+=cun[index];
						        ^
./Main.java:42: error: cannot find symbol
					if(!tem.equals(""))tem+="+";
					    ^
  symbol:   variable tem
  location: class Main
./Main.java:42: error: cannot find symbol
					if(!tem.equals(""))tem+="+";
					                   ^
  symbol:   variable tem
  location: class Main
./Main.java:43: error: cannot find symbol
					tem+="2("+cun[index]+")";
					^
  symbol:   variable tem
  location: class Main
./Main.java:43: error: array required, but ArrayList<String> found
					tem+="2("+cun[index]+")";
					             ^
./Main.java:45: error: cannot find symbol
					if(!tem.equals(""))tem+="+";
					    ^
  symbol:   variable tem
  location: class Main
./Main.java:45: error: cannot find symbol
					if(!tem.equals(""))tem+="+";
					                   ^
  symbol:   variable tem
  location: class Main
./Main.java:46: error: cannot find symbol
					tem+=cun[index];
					^
  symbol:   variable tem
  location: class Main
./Main.java:46: error: array required, but ArrayList<String> found
					tem+=cun[index];
					        ^
10 errors

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