import java.lang.String ;
import java.lang.Math;
import java.io.*;
import java.util.*;

public class DWITE2 {
	public static void main(String[] args) throws IOException {
		
		BufferedReader fin = new BufferedReader( new FileReader("DATA2.TXT") );
		PrintWriter fout = new PrintWriter( new BufferedWriter( new FileWriter("OUT2.TXT") ) );
		
		String[] fline = new String[6];
		int fi = 0;
		while ((fline[fi] = fin.readLine()) != null ) {
			fi++;
		}
		for (int i=0;i<5;i++) {
			
			
				
			
			
			int largeDigit=0;
			
			for (int c=0;c<fline[i].length();c++) {
				if ((int)fline[i].charAt(c)>largeDigit) {
					largeDigit=c;
				}
				
			}
			
			fout.println(Integer.toString(largeDigit));
			
		}
		
		fout.close();
	}
}