Codeforces Spreadsheets

import java.util.Scanner;public class Spreadsheets {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);int n = scanner.nextInt();for(int i = 0; i < n; i++) {String string = scanner.next();char[] ch = string.toCharArray();int m = ch.length;boolean flag = true;if(ch[0] == 'R' && ch[1] - '0' >=1 && ch[1] - '0' <= 9) {for(int j = 2; j < m; j++) {if(ch[j] == 'C') {flag = false;}}if(!flag) {module1(string);} else {module2(string);}} else {module2(string);}}}public static void module1(String ch) {//检索c的位置int index = ch.indexOf('C');String left = ch.substring(1, index);String right = ch.substring(index+1);int k = Integer.valueOf(right);//System.out.println(k);change(k);System.out.println(str+left);str = "";}public static void module2(String ch) {int i = 0;for(i =0 ; i < ch.length(); i++) {if(ch.charAt(i) - '0' >=1 && ch.charAt(i) - '0' <= 9) {break;}}String left = ch.substring(0, i);String right = ch.substring(i);String ss = "R" + right + "C";int l = left.length();char[] cc = left.toCharArray();int sum = 0;for(int p = 0 ; p < l; p++) {int k = cc[p] - 'A' + 1;int temp = 1;for(int m = 0; m < l-p-1; m++) {temp *= 26;}sum += k * temp;}System.out.println(ss + String.valueOf(sum));}static String str = "";public static void change(int k) {if(k <= 26) {str = (char)('A' + k -1) + str ;return ;} if(k % 26 == 0) {str = 'Z'+ str ;k = k /26 - 1;} else {str =(char)('A' + (k % 26) - 1) + str;//System.out.println(str);k = k / 26;}change(k);}}