/in/Main.java:12: error: cannot find symbol
		String q = c.subString(0, c.length() - 1);
		            ^
  symbol:   method subString(int,int)
  location: variable c of type String
/in/Main.java:15: error: cannot find symbol
		allNum = allNum.subString(0, allNum.length() - 1);
		               ^
  symbol:   method subString(int,int)
  location: variable allNum of type String
2 errors