#include <stdio.h>

int main()
{
    int j=-12;
    printf("while:\n");
    while(j<=12){
        printf("%d",j);
        j++;
    }
    
    int z=-12;
    printf("\n Do while: \n");
    do{
    printf("%d",z);
    z++;
    }
    while (z<=12);
    printf("\n For: \n");
    for (int x=-12; x<=12; x++)
        printf("%d",x);
}