#include <stdio.h> int main () { int i=0,j=0,k=0; char a[20]="abcd"; char b[20]; scanf("%s%s",a,b); while(a[i]!='\0') i++; while(k<5) { if(b[j]=='\0')break; a[i++]=b[j++]; k++; } b[j]='\0'; puts(a); }