import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

class Solution041 {

public boolean lemonadeChange(int[] bills) {

int five = 0, ten = 0;

for (int bill: bills) {

if (bill == 5)

five++;

else if (bill == 10) {

if (five == 0) return false;

five--;

ten++;

} else {

if (five > 0 && ten > 0) {

five--;

ten--;

} else if (five >= 3) {

five -= 3;

} else {

return false;

}

}

}

return true;

}

}

public class lemonade {

public static int[] stringToIntegerArray(String input) {

input = input.trim();

input = input.substring(1, input.length() - 1);

if (input.length() == 0) {

return new int[0];

}

String[] parts = input.split(",");

int[] output = new int[parts.length];

for(int index = 0; index < parts.length; index++) {

String part = parts[index].trim();

output[index] = Integer.parseInt(part);

}

return output;

}

public static String booleanToString(boolean input) {

return input ? "True" : "False";

}

public static void main(String[] args) throws IOException {

BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

String line;

while ((line = in.readLine()) != null) {

int[] bills = stringToIntegerArray(line);

boolean ret = new Solution041().lemonadeChange(bills);

String out = booleanToString(ret);

System.out.print(out);

}

}

}