#include <stdio.h>

int front = 0;
int rear = 0;
int que[100];

void enque(int x){
    que[rear++] = x;
}

int size(){
    return rear - front;
}

int main() {
    int arr[] = {101, 102, 103, 104};
    int n = 4;

    for (int i = 0; i < n; i++) {
        enque(arr[i]);
    }

    int time = 3;

    int answer = size() * time;

    printf("%d", answer);

    return 0;
}