var str:[String] = readLine()!.map{String($0)}
let swap:[Int] = readLine()!.split(separator: " ").map{Int($0)!}

let tempChar:String = str[swap[0]]
str[swap[0]] = str[swap[1]]
str[swap[1]] = tempChar

var tempStr:String = ""
for i in 0 ..< str.count {
    tempStr += str[i]
}

print(tempStr)