#include <stdio.h>
#include <unistd.h>

int main(void) {
    int count = 0;
    int curr;
    int prev = 0;
    while(scanf("%d\n", &curr) != EOF) {
        if (prev && curr > prev) {
            count++;
        }
        prev = curr;
    }
    printf("%d\n", count);
    return 0;
}