import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		char[] s = sc.next().toCharArray();
		sc.close();

		int[] a = new int[4];
		for (int i = 0; i < 4; i++) {
			a[i] = s[i] - '0';
		}

		int end = 1 << 3;
		for (int i = 0; i < end; i++) {
			int val = a[0];
			StringBuilder sb = new StringBuilder();
			sb.append(s[0]);
			for (int j = 0; j < 3; j++) {
				if ((i >> j & 1) == 1) {
					val += a[j + 1];
					sb.append('+').append(s[j + 1]);
				} else {
					val -= a[j + 1];
					sb.append('-').append(s[j + 1]);
				}
			}
			if (val == 7) {
				sb.append("=7");
				System.out.println(sb.toString());
				return;
			}
		}
	}
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz