#include 
#include 
#include 
#include 
#include 
using namespace std;
typedef long long ll;
vector palindromes;
int n, weight_max;
int w[105], v[105];
ll dp[105][100005];
ll knapsack(int at, int value) {
    if(value == 0) {
        return 0;
    }
    if(at == n) {
        return 1e9;
    }
    if(dp[at][value] != -1) {
        return dp[at][value];
    }
    ll result = 1e9;
    result = min(result, knapsack(at + 1, value));
    if(value - v[at] >= 0)
        result = min(result, knapsack(at + 1, value - v[at]) + w[at]);
    
    return dp[at][value] = result;
}
int main()
{
    cin >> n >> weight_max;
    int sum = 0;
    for(int i = 0; i < n; i++) {
        cin >> w[i] >> v[i];
        sum += v[i];
    }
    for(int i = 0; i <= n; i++) {
        for(int j = 0; j <= sum; j++) {
            dp[i][j] = -1;
        }
    }
    
    for(int i = sum; i >= 0; i--) {
        if(knapsack(0, i) <= weight_max) {
            cout << i << endl;
            break;
        }
    }
    return 0;
}