#include<bits/stdc++.h>
using namespace std;

using uint = unsigned int;
using ll = long long;

#define CIN( LL , A ) LL A; cin >> A 
#define GETLINE( A ) string A; getline( cin , A ) 
#define GETLINE_SEPARATE( A , SEPARATOR ) string A; getline( cin , A , SEPARATOR ) 
#define FOR_LL( VAR , INITIAL , FINAL_PLUS_ONE ) for( ll VAR = INITIAL ; VAR < FINAL_PLUS_ONE ; VAR ++ ) 
#define FOR_ITR( ARRAY , ITR , END ) for( auto ITR = ARRAY .begin() , END = ARRAY .end() ; ITR != END ; ITR ++ ) 
#define REPEAT( HOW_MANY_TIMES ) FOR_LL( VARIABLE_FOR_REPEAT , 0 , HOW_MANY_TIMES ) 
#define RETURN( ANSWER ) cout << ( ANSWER ) << endl; return 0 
#define DOUBLE( PRECISION , ANSWER ) cout << fixed << setprecision( PRECISION ) << ( ANSWER ) << endl; return 0 
#define MIN( A , B ) A < B ? A : B;
#define MAX( A , B ) A < B ? B : A;
template <typename T> inline T Distance( const T& a , const T& b ){ return a < b ? b - a : a - b; }

int main(){
  GETLINE( S );
  string s[26] = {
    "う　し　" ,
    "う　あ　" ,
    "ん　笑　" ,
    "た　ぷ　" ,
    "く　ん　" ,
    "ぷ　に　" ,
    "し　き　" ,
    "あ　く　" ,
    "う　く　" ,
    "あ　笑　" ,
    "う　ん　" ,
    "し　ぷ　" ,
    "う　き　" ,
    "く　笑　" ,
    "う　笑　" ,
    "に　き　" ,
    "ぷ　笑　" ,
    "た　き　" ,
    "た　ん　" ,
    "し　あ　" ,
    "し　ん　" ,
    "う　う　" ,
    "う　た　" ,
    "き　笑　" ,
    "に　く　" ,
    "笑　笑　"
  };
  ll answer = 0;
  while( S != "" ){
    bool found = false;
    FOR_LL( i , 0 , 26 ){
      string& si = s[i];
      ll size_si = si.size();
      if( S.substr( 0 , size_si ) == si ){
	answer = answer * 26 + i;
	S = S.substr( size_si );
	found = true;
	i = 26;
      }
    }
    if( !found ){
      S = S.substr( 1 );
    }
  }
  RETURN( answer );
}