function Main(input) {
  const array = input.trim().split('').map(s => parseInt(s))
  const N = array.length
  const X = 7

  for(var bit = 0; bit < (1 << N); ++bit) {
    var res = array[0]
    var str = `${array[0]}`
    for(var i = 1; i < N; ++i) {
      if(bit & (1 << i)) {
        res += array[i]
        str = `${str}+${array[i]}`
      } else {
        res -= array[i]
        str = `${str}-${array[i]}`
      }
    }

    if (res === X) {
      console.log(str+'=7')
      break
    }
  }
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));