#include <iostream>

 #include <cstdio>

 #include <cstring>

 #define N 50

 int main()

 {

     char a[N];

     char * p,c;

     printf("input string:\n");

     fgets(a,sizeof(a),stdin);

     if ((p=strchr(a,'\n'))!=NULL)

     {

         *p=;

     }

     printf("string is:\n%s\n",a);

     printf("input the letter to find:\n");

     c=getchar();

     p=strchr(a,c);

     if (p)

     {

         printf("the position is:\n%d",p-a);

     }

     return ;

 }