# first 10 even

# for i in range(2,21,2):
#     print(i)

# first 10 odd
# for i in range(1,20,2):
#     print(i)


# n='nishant'
# c=0
# i=len(n)
# while(c<i):
#     print(n[c])
#     c+=1

# check prime or not

# n=int(input())
# for i in range(2,n):
#     if(n%i==0):
#         break

# if(i==n-1):
#     print(n,"is a prime number")
# else:
#     print(n,"is not a prime number")

# nested loops
# n=int(input())
# for i in range(1,n+1):
    
#     for j in range(1,i+1):
#         print(j,end="")
#     print("")
