<?php
 
while($line = fgets(STDIN)) {
 
    $parts = explode('; ', $line);
 
    $nameParts = preg_split('|:\s*|', trim($parts[0]));
    $surnameParts = preg_split('|:\s*|', trim($parts[1]));
    $dateParts = preg_split('|:\s*|', trim($parts[2]));
 
    $name = $nameParts[1];
    $surname = $surnameParts[1];
    $date = $dateParts[1];
 
 
    if(preg_match('|^[A-Z][a-z]{0,9}$|', $name)) {
        $nameCorrect = true;
    } else {
        $nameCorrect = false;
    }
 
    if(preg_match('|^[A-Z][a-z]{0,19}$|', $surname)) {
        $surnameCorrect = true;
    } else {
        $surnameCorrect = false;
    }
 
    $dateParts = explode('-', $date);
    $year = $dateParts[0];
    $month = $dateParts[1];
    $day = $dateParts[2];
 
    if($year >= 1900 && $year <= 2000 && $month >= 1 && $month <= 12 && $day >= 1 && $day <= 31) {
        $dateCorrect = true;
    } else {
        $dateCorrect = false;
    }
 
    if(!$nameCorrect) {
        printf("0\n");
    } else if(!$surnameCorrect) {
        printf("1\n");
    } else if(!$dateCorrect) {
        printf("2\n");
    } else {
        printf("3\n");
    }
 
}

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Imie: Roman; Nazwisko: Kowalski6; Data ur.: 1900-01-30
Imie: Andrzej; Nazwisko: Kowal; Data ur.: 1899-10-10
Imie: roman; Nazwisko: No-wak; Data ur.: 1099-11-12
Imie: Alicja; Nazwisko: Nowak; Data ur.: 1990-01-01