[Ahmad45123]

As @Mencent said... This should work:
If it doesn't, tell me what is the exact problem.

pawn Код:

if(dialogid == Skin) 
    { 
        if(response) 
        { 
            new skinid, message[64]; 
            skinid = strval(inputtext); 
            if(skinid < 0 || skinid > 299) 
            { 
                SendClientMessage(playerid, 0x33FF33AA, "Error: Choose a skin ID between 0 and 299."); 
                Kick(playerid);
            } 
            else 
            { 
                format(message, sizeof(message), "You have successfully changed your skin id to %d.", skinid); 
                SendClientMessage(playerid, 0x33FF33AA, message); 
                SetSpawnInfo(playerid,0,skinid,2239.723, -1261.922, 23.9375,270.7165,0,0,0,0,0,0); 
                SpawnPlayer(playerid); 
            } 
        } 
    }