2.1

# include
int main()
{
 int a,b,c,d,e;
a=getchar();
b=getchar();
c=getchar();
d=getchar();
e=getchar();
putchar(a);
putchar(b);
putchar(c);
putchar(d);
putchar(e);
putchar('\n');
return 0;
}

转载于:https://www.cnblogs.com/P201821430010/p/10768256.html