package NoErro;
import java.util.Scanner;
import java.util.StringTokenizer;
public class Work {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String s = scan.nextLine();
StringTokenizer st = new StringTokenizer(s, "+");
int n = st.countTokens();
int sum = 0;
for(int i=0; i<n; i++)
{
String token = st.nextToken();
int a = Integer.parseInt(token.trim());
sum = sum + a;
}
String t = scan.nextLine();
StringTokenizer u = new StringTokenizer(t, "-");
int m = st.countTokens();
int sum = 0; < - ¾ê°¡ °ãÃļ ¿¡·¯°¡ ¶ß´øµ¥ .. Áö¿ì¸é À§¿¡ µÎÁÙÀÌ ¶Ç ¿¡·¯°¡ ¶ß´õ¶ó±¸¿ä
for(int i=0; i>n;)
{
String token = st.nextToken();
int a = Integer.parseInt(token.trim());
sum = sum - a;
}
System.out.print(" °á°ú " + sum);
scan.close();
}
}
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