card={ 'a', 'e', 'i', 'o', 'u'}
a=input()
x=0
for c in a:
if c in card:
x+=1
elif c.isdigit() and int(c)%2==1:
x+=1
print(x)#include <bits/stdc++.h>
#define int long long
#define endl "\n"
using namespace std;
int32_t main()
{
ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
string s;cin>>s;
int cnt=0;
for(auto x : s){
if(x=='a' or x=='e' or x=='i' or x=='o' or x=='u'
or x=='1' or x=='3' or x=='5'
or x=='7' or x=='9')cnt++;
}
cout<<cnt<<endl;
}
938A - Word Correction | 159C - String Manipulation 10 |
258A - Little Elephant and Bits | 1536C - Diluc and Kaeya |
1428C - ABBB | 1557A - Ezzat and Two Subsequences |
255A - Greg's Workout | 1059A - Cashier |
1389C - Good String | 1561A - Simply Strange Sort |
1337B - Kana and Dragon Quest game | 137C - History |
1443C - The Delivery Dilemma | 6C - Alice Bob and Chocolate |
1077C - Good Array | 285B - Find Marble |
6A - Triangle | 1729A - Two Elevators |
1729B - Decode String | 1729C - Jumping on Tiles |
1729E - Guess the Cycle Size | 553B - Kyoya and Permutation |
1729D - Friends and the Restaurant | 1606C - Banknotes |
580C - Kefa and Park | 342A - Xenia and Divisors |
1033A - King Escape | 39D - Cubical Planet |
1453A - Cancel the Trains | 645A - Amity Assessment |