#include <stdio.h>
int cekp(int a){
int hitung=0;
if(a==2){
return 1;
}
else{
for(int i=a;i>=1;i--){if(a%i==0){hitung++;}}
if(hitung==2){return 1;}
else {return 0;}
}
}
int main(){
/*
int i,a,jumlah=0;
scanf("%d",&a);
for(i=1;i<=a;i++){
printf("%d",i);
jumlah+=i;
if(i<a){printf(" + ");}
else{printf(" = %d",jumlah);}
}
*/
/*
int i,a,j;
scanf("%d",&a);
for(i=0;i<a;i++){
for(j=a;j>i;j--){printf(" ");}
for(j=0;j<=i;j++){printf("*");}
for(j=0;j<i;j++){printf("*");}
printf("\n");
}*/
/*Nomer 1*/
// int a;
//scanf("%d",&a);
//if(a%2==0){printf("Genap");}
//else{printf("Ganjil");}
/*Nomer 2*/
//int i,a;
//scanf("%d",&a);
//for(i=1;i<=a;i++){
// if(i%2==0){printf(" * ");}
// else{printf("%d",i);}
//}
/*Nomer 3*/
int i,a;
for(i=2;i<=a;i++){
}
return 0;
}
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