#include<stdio.h>
int main(){
    float balance;
    int n,i;
    float transaction
    
    scanf("%f",&balance);
    scanf("%d",& n);
    for (i=0; i<n; i++){
        scanf("%f",&transaction);
        balance+=transaction;
        
        printf("% 2f\n", balance);
        return 0;
    }
    
}