n UInt32 s String a Array(UInt64) 0 Hello [] 1 Hello [0] 2 Hello [0,1] n UInt32 s String a Array(UInt64) 0 Hello [] 1 Hello [0] 2 Hello [0,1] n UInt32 s String a Array(UInt64) 0 Hello [] 1 Hello [0] 2 Hello [0,1]