class TokenizerTest {
	public static void main(String[] args){
		java.util.StringTokenizer st = new java.util.StringTokenizer("= sum a2:b14");
		while (st.hasMoreTokens())
			System.out.println(st.nextToken());
		decipherRange("a20:b14");		
		
	}
	
	private static void decipherRange(String s){
		String cs1,rs1,cs2,rs2;
		cs1=s.substring(0,1);
		int colonIndex = s.indexOf(":");
		rs1=s.substring(1,colonIndex);
		cs2=s.substring(colonIndex+1,colonIndex+2);
		rs2=s.substring(colonIndex+2,s.length());
		System.out.println(cs1+"/"+rs1+"/"+cs2+"/"+rs2);
		int c1,r1,c2,r2;
	}
		
}