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#include<stdio.h>
int main()
{
 
  long long int i=0,j,n;
    while(1)
    {n=i;
        if(n%7==3)
        {
            n=n/7;
            if(n%11==4)
            {
                n=n/11;
 
                if(n%13==5)
                {
                    printf("%uld",i);
                    break;}}}
                   \\ else if(i=4000000000)
                    \\{printf("not found");
                    \\break;}
                    i++;
                    }
                    return 0;
                    }
 

cc1: warnings being treated as errors
prog.c: In function ‘main’:
prog.c:17: error: format ‘%u’ expects type ‘unsigned int’, but argument 2 has type ‘long long int’
prog.c:19: error: stray ‘\’ in program
prog.c:19: error: stray ‘\’ in program
prog.c:19: error: suggest parentheses around assignment used as truth value
prog.c:20: error: stray ‘\’ in program
prog.c:20: error: stray ‘\’ in program
prog.c:21: error: stray ‘\’ in program
prog.c:21: error: stray ‘\’ in program
prog.c:5: error: unused variable ‘j’

Standard output is empty