#include
#include
#include "string.h"
std::string format(int number,int width)
{
char c[20];
sprintf(c,"%d",number);
int size = strlen(c);
std::string str;
str.insert(0,c);
for(int i=0;i {
str.insert(i,"0");
}
return str;
}
int main()
{
int number,width;
std::cout<<"input the number:";
std::cin>>number;
std::cout<<"input the width:";
std::cin>>width;
std::cout< return 0;
