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

int solution(int* nums, int size, int k) {
    int operations = 0;
    
    while (size > 0) {
        int minVal = INT_MAX;
        int minIndex = -1;
        
        for (int i = 0; i < size; i++) {
            if (nums[i] < minVal) {
                minVal = nums[i];
                minIndex = i;
            }
        }
        
        if (minVal >= k) break;
        
        // Remove element by shifting
        for (int i = minIndex; i < size - 1; i++) {
            nums[i] = nums[i + 1];
        }
        size--;
        operations++;
    }
    
    return operations;
}

int main() {
    char line[1000];
    fgets(line, sizeof(line), stdin);
    
    // Parse array - handle JSON format properly
    int nums[1000];
    int size = 0;
    
    // Find the start of array content
    char* start = strchr(line, '[');
    if (start) {
        start++; // Skip '['
        char* end = strchr(start, ']');
        if (end) {
            *end = '\0'; // Null terminate before ']'
        }
        
        // Parse numbers, handling negative values
        char* token = strtok(start, ",");
        while (token != NULL && size < 1000) {
            // Skip whitespace
            while (*token == ' ') token++;
            if (strlen(token) > 0) {
                nums[size++] = atoi(token);
            }
            token = strtok(NULL, ",");
        }
    }
    
    int k;
    scanf("%d", &k);
    
    int result = solution(nums, size, k);
    printf("%d\n", result);
    
    return 0;
}