#includ<stdio.h>
int?main()
{
????int?a?=?0?;
????int?n?=?0?;
????scanf?("%d%d",&a,&n);??
????int?i;
????int?j;
????for(i=1;?i<=n?;?i++)???????//n決定外層循環次數
????{
????????for?(j=1?;j<=i?;?j++)??//用i的值決定內層循環次數
????????????{
?????????????printf("%d",a);
????????????}
?????????printf("+");
????}
????return?0;
}