import java.util.*; import java.io.*; import java.math.*; public class A{ void solve() { char s[]=ns().toCharArray(); int n=s.length; int sum[][]=new int[n+1][26]; for(int i=0;i0){ int l=ni(); int r=ni(); int o=0; int cc=0; long ans=1; for(int i=0;i<26;i++) { int sm=sum[r][i]-sum[l-1][i]; if(sm%2==0){ cc+=(sm/2); ans=(ans%M * modInverse(fact[sm/2],M)%M )%M; } else{ cc+=(sm-1)/2; ans=(ans%M * modInverse(fact[(sm-1)/2],M)%M)%M; o++; } } ans=(ans*fact[cc])%M; if(o>0) ans=(ans*o)%M; pw.println(ans); } } static long modPow(long x,long y,long M){ if(y==0) return 1; if(y%2==0) return modPow((x*x)%M,y/2,M)%M; else return (x*modPow((x*x)%M,(y-1)/2,M))%M; } static long d, x, y; static void extendedEuclid(long A, long B) { if(B == 0) { d = A; x = 1; y = 0; } else { extendedEuclid(B, A%B); long temp = x; x = y; y = temp - (A/B)*y; } } static long modInverse(long A, long M) { extendedEuclid(A,M); return (x%M+M)%M; } long M=(long)1e9+7; InputStream is; PrintWriter pw; String INPUT = ""; void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); pw = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); pw.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); } public static void main(String[] args) throws Exception { new A().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private int ni() { int num = 0, b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private void tr(Object... o) { if(INPUT.length() > 0)System.out.println(Arrays.deepToString(o)); } }