swap

code: swift

var S = Array(readLine()!)

let T = Array(readLine()!)

var ans = "No"

if S == T {

ans = "Yes"

}

for i in 0..<S.count-1 {

S.swapAt(i, i+1)

if S == T {

ans = "Yes"

}

S.swapAt(i, i+1)

}

print(ans)