#include <iostream>
#include <string>
int main()
{
int i,i2;
int b=1;
int j2=1;
for (i = 1; i <= 4; i++) {
for (i2 = 1; i2 <= j2; i2++)
std::cout<<b;
std::cout<<"\n";
b+=2;
b-=1;
j2++;
}
#include <iostream>
#include <string>
int main()
{
int i,i2;
int b=1;
int j2=1;
for (i = 1; i <= 4; i++) {
for (i2 = 1; i2 <= j2; i2++)
std::cout<<b;
std::cout<<"\n";
b+=2;
for (i2 = 1; i2 <= j2; i2++)
std::cout<<b;
std::cout<<"\n";
b-=1;
j2++;
}
}