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

int main() {
    char s[105];
    scanf("%s", s);
    int len = strlen(s);

    if (len < 1 || len > 32) {
        printf("400\n");
        return 0;
    }

    if (s[0] == '_' || s[len-1] == '-' || s[0] == '-' || s[len-1] == '_') {
        printf("400\n");
        return 0;
    }

    for (int i = 0; i < len; i++) {
        if (!(isalnum(s[i]) || s[i] == '_' || s[i] == '-')) {
            printf("400\n");
            return 0;
        }
    }

    printf("200\n");
}