I want to read input in rust like this C++ example:

main() {
    int a,b;
    cin>>a>>b; //read user input into a and b. Can be separated by a space character or n
    cout<<"a: "<<a<<'n'<<"b: "<<b<<'n';
}

input:

123 34

output:

a: 123
b: 34

Pardon me for this simple question.