source_code: import java.io.BufferedReader;
  import java.io.InputStreamReader;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  
  public class RoundOneProblemB {
  
  	/**
  	 * @param args
  	 */
  	public static void main(String[] args) {
  				
  		int n=1;
  		
  		BufferedReader input = new BufferedReader(new InputStreamReader(System.in), 50);
  		
  		try {
  			
  			n = Integer.valueOf(input.readLine());
  			
  			if (! ((1 <= n) && (n <= Math.pow(10, 5)))) {
  				formatError();
  			}
  			
  			Pattern typeOne = Pattern.compile("^([A-Z]+)([0-9]+)$");
  			Pattern typeTwo = Pattern.compile("^R([0-9]+)C([0-9]+)$");
  			for (int i=0; i < n; i++) {
  				String line = input.readLine();
  				Matcher matchOne = typeOne.matcher(line);
  				if (matchOne.find()) {
  					System.out.println(convertOneToTwo(matchOne.group(2), matchOne.group(1)));
  				} else {
  					Matcher matchTwo = typeTwo.matcher(line);
  					if (matchTwo.find()) {
  						System.out.println(convertTwoToOne(matchTwo.group(1), matchTwo.group(2)));
  					}
  				}
  			}
  						
  		} catch (Exception e) {
  			formatError();		
  		} 
  		
  	}
  	
  	private static String convertTwoToOne(String row, String col) {
  		StringBuilder result = new StringBuilder();
  		
  		long c = Long.parseLong(col);
  		while ( c > 0) {
  			result.append((char)(((c-1) % 26)+'A'));
  			c = (c-1) / 26;
  		} 
  		result.reverse();
  		result.append(Long.parseLong(row));
  		
  		return result.toString();
  	}
  	
  	private static String convertOneToTwo(String row, String col) {
  		StringBuilder result = new StringBuilder();
  		
  		int l = col.length();
  		col = col.toUpperCase();
  		
  		long base = 1;
  		long c = 0;
  		for (int i=l-1; i >= 0; i--) {
  			c = c + ((col.charAt(i) - 'A' + 1) * base);
  			base = base * 26;
  		}
  		
  		result.append("R").append(Long.parseLong(row)).append("C").append(c);
  		return result.toString();
  	}
  	
  	/**
  	 * Exit with an error due to unexpected standard input. 
  	 */
  	private static void formatError() {
  		System.out.println("Unexpected input");
  		System.exit(1);	
  	}
  
  }
  