// eddy1021 #pragma GCC optimize("O3") #include using namespace std; typedef double D; typedef long double LD; typedef long long LL; typedef pair PII; typedef pair PLL; #define mod9 1000000009LL #define mod7 1000000007LL #define INF 1023456789LL #define INF16 10000000000000000LL #define eps 1e-9 #define SZ(x) (int)(x).size() #define ALL(x) (x).begin(), (x).end() #define IOS ios_base::sync_with_stdio(0); cin.tie(0) #ifndef ONLINE_JUDGE #define debug(...) printf(__VA_ARGS__) #else #define debug(...) #endif inline LL getint(){ LL _x=0,_tmp=1; char _tc=getchar(); while( (_tc<'0'||_tc>'9')&&_tc!='-' ) _tc=getchar(); if( _tc == '-' ) _tc=getchar() , _tmp = -1; while(_tc>='0'&&_tc<='9') _x*=10,_x+=(_tc-'0'),_tc=getchar(); return _x*_tmp; } inline LL add( LL _x , LL _y , LL _mod = mod7 ){ _x += _y; return _x >= _mod ? _x - _mod : _x; } inline LL sub( LL _x , LL _y , LL _mod = mod7 ){ _x -= _y; return _x < 0 ? _x + _mod : _x; } inline LL mul( LL _x , LL _y , LL _mod = mod7 ){ _x *= _y; return _x >= _mod ? _x % _mod : _x; } LL mypow( LL _a , LL _x , LL _mod ){ if( _x == 0 ) return 1LL; LL _ret = mypow( mul( _a , _a , _mod ) , _x >> 1 , _mod ); if( _x & 1 ) _ret = mul( _ret , _a , _mod ); return _ret; } LL mymul( LL _a , LL _x , LL _mod ){ if( _x == 0 ) return 0LL; LL _ret = mymul( add( _a , _a , _mod ) , _x >> 1 , _mod ); if( _x & 1 ) _ret = add( _ret , _a , _mod ); return _ret; } inline bool equal( D _x , D _y ){ return _x > _y - eps && _x < _y + eps; } void sleep( double sec = 1021 ){ clock_t s = clock(); while( clock() - s < CLOCKS_PER_SEC * sec ); } #define Bye exit(0) int __ = 1 , _cs; /*********default*********/ #define N 101010 int fac[ N ] , ifac[ N ]; void build(){ fac[ 0 ] = 1; ifac[ 0 ] = 1; for( int i = 1 ; i < N ; i ++ ){ fac[ i ] = mul( fac[ i - 1 ] , i ); ifac[ i ] = mypow( fac[ i ] , mod7 - 2 , mod7 ); } } char s[ N ]; int a[ N ][ 26 ] , n; void init(){ scanf( "%s" , s + 1 ); n = strlen( s + 1 ); for( int i = 1 ; i <= n ; i ++ ){ for( int j = 0 ; j < 26 ; j ++ ) a[ i ][ j ] = a[ i - 1 ][ j ]; a[ i ][ s[ i ] - 'a' ] ++; } } int x[ 26 ]; void solve(){ int q = getint(); while( q -- ){ int ql = getint(); int qr = getint(); for( int i = 0 ; i < 26 ; i ++ ) x[ i ] = a[ qr ][ i ] - a[ ql - 1 ][ i ]; int len = 0; int odd = 0; for( int i = 0 ; i < 26 ; i ++ ){ len += (x[ i ] >> 1); odd += (x[ i ] & 1); } int ans = mul( max( 1 , odd ) , fac[ len ] ); for( int i = 0 ; i < 26 ; i ++ ) ans = mul( ans , ifac[ x[ i ] >> 1 ] ); printf( "%d\n" , ans ); } } int main(){ build(); //__ = getint(); while( __ -- ){ init(); solve(); } }