public static void Main(string[l args) for(int i = 3;ic=18;it+)[ bool flag = true,
for(int k - 2.k<-i-1;kt+){
if(i%k == 0)
flag = false;
if(flag =- false)[
Console.write(“ (0):”,i)
public static void Main(stringl args)
int[]a = (1, 3,4, 12, 5, 2, 7); int i =4:
int pivot = a[i]; int s =i-1; for(; s>=0;s--) {
]else {
break
a[s+1] = pivot;
foreach(int k in a)l
Console.Write(k)
.public static void Main(stringl] args)
int count = 0; for(int 3 i(19;it=2)(
bool flag =true,
bfor(int k - 2.kk-i-1;k++)(
if(i%k =- 0)
flag + false; break
if(flag)(
cansole.Hrite(" (0]*“,i): count++;
if(count %4 - 0) Console.writeLine()