#include <stdio.h>
 
#define MAX_DATA 100 // 何の数字か名前をつける（定数）
 
int main(void) {
    double time[MAX_DATA];
    double voltage[MAX_DATA];
    int n = 0; // 読み込んだデータ数
 
    // 1. データの読み込み
    // 1年目なら「count」や「n」など、中身が想像できる変数名を使いたいところ
    while (n < MAX_DATA && scanf("%lf,%lf", &time[n], &voltage[n]) == 2) {
        n++;
    }
 
    // 2. 見出しの表示
    printf("No.\t時間[s]\t電位[v]\n");
 
    // 3. 極大値を探して表示
    int peak_id = 1;
 
    // 最初のデータ(0)と最後のデータ(n-1)は前後と比較できないので、1 から n-2 まで回す
    for (int i = 1; i < n - 1; i++) {
        // 前の点より高く、かつ後ろの点よりも高い = 山の頂上
        if (voltage[i] > voltage[i - 1] && voltage[i] > voltage[i + 1]) {
            printf("%d\t%.6f\t%.6f\n", peak_id, time[i], voltage[i]);
            peak_id++;
        }
    }
 
    return 0;
}

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