O/p??
#include<stdio.h>
int main()
{
    char s1[100]="Akash",s2[100]="_MK";
    int length,j;
    length=0;
    while(s1[length]!='\0')
    {
        length++;
    }
    for(j=0;s2[j]!='\0';j++,length++)
    {
        s1[length]=s2[j];
    }
    s1[length]='\0';
    printf("After \n");
    puts(s1);
}

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