Not Modify Input Text Value But MODIFY only a part of INPUT TEXT [duplicate]

How to modify the Input Value in React. Suppose the input value is “My name is John Cena”. How do I modify the input value as

“My name is John Cena“

John Cena 21

          render() {
              return (
                  <div>
                      <input
                          type="text"
                          value="My name is John Cena"
                      />
                  </div>
              )
          }
      }

      export default Module

I tried

value="My name is <b>John Cena</b>"

value=`My name is ${<b>}John Cena${</b>}`

Nothing works.