#include <stdio.h>
#include <string.h>

int main()
{
    char ch;
    int i,price,count1=0;
    for(i=0;i<3;i++){
        scanf("%c", &ch);
        if(ch=='o')
            count1++;
    }

    price = 700 + 100*count1;
    printf("%d\n", price);


    return 0;
}
