C
c
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#include<stdio.h>
int main(){
int i,noofdays;
int first;
printf("enter no of days in a month:\n");
scanf("%d",&noofdays);
printf("enter first day in a month:\n");
scanf("%d",&first);
for(i=1;i<first;i++)
printf(" ");
for(i=1;i<=noofdays;i++){
printf("%3d",i);
if((first+i-1)%7==0)
printf("\n");
}
return 0;
}
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