Blood Pressure Measurement

while True:
 try:
  m=int(input("請輸入血壓的上額值:"))
  print(m)
  n=int(input("請輸入血壓的下額值:"))
  print(n)
 except ValueError as e:
    print()
    print("只輸入血壓上額值及下額值的數字!")
 else:
  if m<120 and n<80:
    print(f"你的血壓上額值是 {m} 及血壓上額值是 {n}，血壓值:{m}/{n}")
    print("血壓理想!")
  elif m<=129 and n<=84:
    print(f"你的血壓上額值是 {m} 及血壓上額值是 {n}，血壓值:{m}/{n}")
    print("血壓正常!")
  elif m<=139 and n<=89:
    print(f"你的血壓上額值是 {m} 及血壓上額值是 {n}，血壓值:{m}/{n}")
    print("血壓正常至偏高!")
  else: 
    print(f"你的血壓上額值是 {m} 及血壓上額值是 {n}，血壓值:{m}/{n}")
    print("高血壓!請盡快約見醫生!")
 o=input("是否繼續輸入?")
 print(o)
 if o in "No":
    break